Commit | Line | Data |
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1da177e4 LT |
1 | # |
2 | # Character device configuration | |
3 | # | |
4 | ||
5 | menu "Character devices" | |
6 | ||
7 | config VT | |
8 | bool "Virtual terminal" if EMBEDDED | |
9 | select INPUT | |
10 | default y if !VIOCONS | |
11 | ---help--- | |
12 | If you say Y here, you will get support for terminal devices with | |
13 | display and keyboard devices. These are called "virtual" because you | |
14 | can run several virtual terminals (also called virtual consoles) on | |
15 | one physical terminal. This is rather useful, for example one | |
16 | virtual terminal can collect system messages and warnings, another | |
17 | one can be used for a text-mode user session, and a third could run | |
18 | an X session, all in parallel. Switching between virtual terminals | |
19 | is done with certain key combinations, usually Alt-<function key>. | |
20 | ||
21 | The setterm command ("man setterm") can be used to change the | |
22 | properties (such as colors or beeping) of a virtual terminal. The | |
23 | man page console_codes(4) ("man console_codes") contains the special | |
24 | character sequences that can be used to change those properties | |
25 | directly. The fonts used on virtual terminals can be changed with | |
26 | the setfont ("man setfont") command and the key bindings are defined | |
27 | with the loadkeys ("man loadkeys") command. | |
28 | ||
29 | You need at least one virtual terminal device in order to make use | |
30 | of your keyboard and monitor. Therefore, only people configuring an | |
31 | embedded system would want to say N here in order to save some | |
32 | memory; the only way to log into such a system is then via a serial | |
33 | or network connection. | |
34 | ||
35 | If unsure, say Y, or else you won't be able to do much with your new | |
36 | shiny Linux system :-) | |
37 | ||
38 | config VT_CONSOLE | |
39 | bool "Support for console on virtual terminal" if EMBEDDED | |
40 | depends on VT | |
41 | default y | |
42 | ---help--- | |
43 | The system console is the device which receives all kernel messages | |
44 | and warnings and which allows logins in single user mode. If you | |
45 | answer Y here, a virtual terminal (the device used to interact with | |
46 | a physical terminal) can be used as system console. This is the most | |
47 | common mode of operations, so you should say Y here unless you want | |
48 | the kernel messages be output only to a serial port (in which case | |
49 | you should say Y to "Console on serial port", below). | |
50 | ||
51 | If you do say Y here, by default the currently visible virtual | |
52 | terminal (/dev/tty0) will be used as system console. You can change | |
53 | that with a kernel command line option such as "console=tty3" which | |
54 | would use the third virtual terminal as system console. (Try "man | |
55 | bootparam" or see the documentation of your boot loader (lilo or | |
56 | loadlin) about how to pass options to the kernel at boot time.) | |
57 | ||
58 | If unsure, say Y. | |
59 | ||
60 | config HW_CONSOLE | |
61 | bool | |
62 | depends on VT && !S390 && !UML | |
63 | default y | |
64 | ||
65 | config SERIAL_NONSTANDARD | |
66 | bool "Non-standard serial port support" | |
67 | ---help--- | |
68 | Say Y here if you have any non-standard serial boards -- boards | |
69 | which aren't supported using the standard "dumb" serial driver. | |
70 | This includes intelligent serial boards such as Cyclades, | |
71 | Digiboards, etc. These are usually used for systems that need many | |
72 | serial ports because they serve many terminals or dial-in | |
73 | connections. | |
74 | ||
75 | Note that the answer to this question won't directly affect the | |
76 | kernel: saying N will just cause the configurator to skip all | |
77 | the questions about non-standard serial boards. | |
78 | ||
79 | Most people can say N here. | |
80 | ||
81 | config COMPUTONE | |
82 | tristate "Computone IntelliPort Plus serial support" | |
33f0f88f | 83 | depends on SERIAL_NONSTANDARD |
1da177e4 LT |
84 | ---help--- |
85 | This driver supports the entire family of Intelliport II/Plus | |
86 | controllers with the exception of the MicroChannel controllers and | |
87 | products previous to the Intelliport II. These are multiport cards, | |
88 | which give you many serial ports. You would need something like this | |
89 | to connect more than two modems to your Linux box, for instance in | |
90 | order to become a dial-in server. If you have a card like that, say | |
91 | Y here and read <file:Documentation/computone.txt>. | |
92 | ||
93 | To compile this driver as modules, choose M here: the | |
94 | modules will be called ip2 and ip2main. | |
95 | ||
96 | config ROCKETPORT | |
97 | tristate "Comtrol RocketPort support" | |
98 | depends on SERIAL_NONSTANDARD | |
99 | help | |
100 | This driver supports Comtrol RocketPort and RocketModem PCI boards. | |
101 | These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or | |
102 | modems. For information about the RocketPort/RocketModem boards | |
103 | and this driver read <file:Documentation/rocket.txt>. | |
104 | ||
105 | To compile this driver as a module, choose M here: the | |
106 | module will be called rocket. | |
107 | ||
108 | If you want to compile this driver into the kernel, say Y here. If | |
109 | you don't have a Comtrol RocketPort/RocketModem card installed, say N. | |
110 | ||
111 | config CYCLADES | |
112 | tristate "Cyclades async mux support" | |
113 | depends on SERIAL_NONSTANDARD | |
114 | ---help--- | |
115 | This driver supports Cyclades Z and Y multiserial boards. | |
116 | You would need something like this to connect more than two modems to | |
117 | your Linux box, for instance in order to become a dial-in server. | |
118 | ||
119 | For information about the Cyclades-Z card, read | |
120 | <file:drivers/char/README.cycladesZ>. | |
121 | ||
122 | To compile this driver as a module, choose M here: the | |
123 | module will be called cyclades. | |
124 | ||
125 | If you haven't heard about it, it's safe to say N. | |
126 | ||
127 | config CYZ_INTR | |
128 | bool "Cyclades-Z interrupt mode operation (EXPERIMENTAL)" | |
129 | depends on EXPERIMENTAL && CYCLADES | |
130 | help | |
131 | The Cyclades-Z family of multiport cards allows 2 (two) driver op | |
132 | modes: polling and interrupt. In polling mode, the driver will check | |
133 | the status of the Cyclades-Z ports every certain amount of time | |
134 | (which is called polling cycle and is configurable). In interrupt | |
135 | mode, it will use an interrupt line (IRQ) in order to check the | |
136 | status of the Cyclades-Z ports. The default op mode is polling. If | |
137 | unsure, say N. | |
138 | ||
139 | config DIGIEPCA | |
140 | tristate "Digiboard Intelligent Async Support" | |
f2cf8e25 | 141 | depends on SERIAL_NONSTANDARD |
1da177e4 LT |
142 | ---help--- |
143 | This is a driver for Digi International's Xx, Xeve, and Xem series | |
144 | of cards which provide multiple serial ports. You would need | |
145 | something like this to connect more than two modems to your Linux | |
146 | box, for instance in order to become a dial-in server. This driver | |
147 | supports the original PC (ISA) boards as well as PCI, and EISA. If | |
148 | you have a card like this, say Y here and read the file | |
149 | <file:Documentation/digiepca.txt>. | |
150 | ||
151 | To compile this driver as a module, choose M here: the | |
152 | module will be called epca. | |
153 | ||
154 | config ESPSERIAL | |
155 | tristate "Hayes ESP serial port support" | |
33f0f88f | 156 | depends on SERIAL_NONSTANDARD && ISA && ISA_DMA_API |
1da177e4 LT |
157 | help |
158 | This is a driver which supports Hayes ESP serial ports. Both single | |
159 | port cards and multiport cards are supported. Make sure to read | |
160 | <file:Documentation/hayes-esp.txt>. | |
161 | ||
162 | To compile this driver as a module, choose M here: the | |
163 | module will be called esp. | |
164 | ||
165 | If unsure, say N. | |
166 | ||
167 | config MOXA_INTELLIO | |
168 | tristate "Moxa Intellio support" | |
33f0f88f | 169 | depends on SERIAL_NONSTANDARD |
1da177e4 LT |
170 | help |
171 | Say Y here if you have a Moxa Intellio multiport serial card. | |
172 | ||
173 | To compile this driver as a module, choose M here: the | |
174 | module will be called moxa. | |
175 | ||
176 | config MOXA_SMARTIO | |
177 | tristate "Moxa SmartIO support" | |
1d25240f | 178 | depends on SERIAL_NONSTANDARD |
1da177e4 LT |
179 | help |
180 | Say Y here if you have a Moxa SmartIO multiport serial card. | |
181 | ||
182 | This driver can also be built as a module ( = code which can be | |
183 | inserted in and removed from the running kernel whenever you want). | |
184 | The module will be called mxser. If you want to do that, say M | |
185 | here. | |
186 | ||
187 | config ISI | |
188 | tristate "Multi-Tech multiport card support (EXPERIMENTAL)" | |
189 | depends on SERIAL_NONSTANDARD | |
190 | help | |
191 | This is a driver for the Multi-Tech cards which provide several | |
192 | serial ports. The driver is experimental and can currently only be | |
193 | built as a module. The module will be called isicom. | |
194 | If you want to do that, choose M here. | |
195 | ||
196 | config SYNCLINK | |
197 | tristate "Microgate SyncLink card support" | |
a5532606 | 198 | depends on SERIAL_NONSTANDARD && PCI && ISA_DMA_API |
1da177e4 LT |
199 | help |
200 | Provides support for the SyncLink ISA and PCI multiprotocol serial | |
201 | adapters. These adapters support asynchronous and HDLC bit | |
202 | synchronous communication up to 10Mbps (PCI adapter). | |
203 | ||
204 | This driver can only be built as a module ( = code which can be | |
205 | inserted in and removed from the running kernel whenever you want). | |
206 | The module will be called synclink. If you want to do that, say M | |
207 | here. | |
208 | ||
209 | config SYNCLINKMP | |
210 | tristate "SyncLink Multiport support" | |
f91f4d92 | 211 | depends on SERIAL_NONSTANDARD |
1da177e4 LT |
212 | help |
213 | Enable support for the SyncLink Multiport (2 or 4 ports) | |
214 | serial adapter, running asynchronous and HDLC communications up | |
215 | to 2.048Mbps. Each ports is independently selectable for | |
216 | RS-232, V.35, RS-449, RS-530, and X.21 | |
217 | ||
218 | This driver may be built as a module ( = code which can be | |
219 | inserted in and removed from the running kernel whenever you want). | |
220 | The module will be called synclinkmp. If you want to do that, say M | |
221 | here. | |
222 | ||
705b6c7b PF |
223 | config SYNCLINK_GT |
224 | tristate "SyncLink GT/AC support" | |
225 | depends on SERIAL_NONSTANDARD | |
226 | help | |
227 | Support for SyncLink GT and SyncLink AC families of | |
228 | synchronous and asynchronous serial adapters | |
229 | manufactured by Microgate Systems, Ltd. (www.microgate.com) | |
230 | ||
1da177e4 LT |
231 | config N_HDLC |
232 | tristate "HDLC line discipline support" | |
233 | depends on SERIAL_NONSTANDARD | |
234 | help | |
235 | Allows synchronous HDLC communications with tty device drivers that | |
236 | support synchronous HDLC such as the Microgate SyncLink adapter. | |
237 | ||
238 | This driver can only be built as a module ( = code which can be | |
239 | inserted in and removed from the running kernel whenever you want). | |
240 | The module will be called n_hdlc. If you want to do that, say M | |
241 | here. | |
242 | ||
243 | config RISCOM8 | |
244 | tristate "SDL RISCom/8 card support" | |
245 | depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP | |
246 | help | |
247 | This is a driver for the SDL Communications RISCom/8 multiport card, | |
248 | which gives you many serial ports. You would need something like | |
249 | this to connect more than two modems to your Linux box, for instance | |
250 | in order to become a dial-in server. If you have a card like that, | |
251 | say Y here and read the file <file:Documentation/riscom8.txt>. | |
252 | ||
253 | Also it's possible to say M here and compile this driver as kernel | |
254 | loadable module; the module will be called riscom8. | |
255 | ||
256 | config SPECIALIX | |
257 | tristate "Specialix IO8+ card support" | |
258 | depends on SERIAL_NONSTANDARD | |
259 | help | |
260 | This is a driver for the Specialix IO8+ multiport card (both the | |
261 | ISA and the PCI version) which gives you many serial ports. You | |
262 | would need something like this to connect more than two modems to | |
263 | your Linux box, for instance in order to become a dial-in server. | |
264 | ||
265 | If you have a card like that, say Y here and read the file | |
266 | <file:Documentation/specialix.txt>. Also it's possible to say M here | |
267 | and compile this driver as kernel loadable module which will be | |
268 | called specialix. | |
269 | ||
270 | config SPECIALIX_RTSCTS | |
271 | bool "Specialix DTR/RTS pin is RTS" | |
272 | depends on SPECIALIX | |
273 | help | |
274 | The Specialix IO8+ card can only support either RTS or DTR. If you | |
275 | say N here, the driver will use the pin as "DTR" when the tty is in | |
276 | software handshake mode. If you say Y here or hardware handshake is | |
277 | on, it will always be RTS. Read the file | |
278 | <file:Documentation/specialix.txt> for more information. | |
279 | ||
280 | config SX | |
281 | tristate "Specialix SX (and SI) card support" | |
282 | depends on SERIAL_NONSTANDARD | |
283 | help | |
284 | This is a driver for the SX and SI multiport serial cards. | |
285 | Please read the file <file:Documentation/sx.txt> for details. | |
286 | ||
287 | This driver can only be built as a module ( = code which can be | |
288 | inserted in and removed from the running kernel whenever you want). | |
289 | The module will be called sx. If you want to do that, say M here. | |
290 | ||
291 | config RIO | |
292 | tristate "Specialix RIO system support" | |
aed615a9 | 293 | depends on SERIAL_NONSTANDARD && BROKEN_ON_SMP && !64BIT |
1da177e4 LT |
294 | help |
295 | This is a driver for the Specialix RIO, a smart serial card which | |
296 | drives an outboard box that can support up to 128 ports. Product | |
297 | information is at <http://www.perle.com/support/documentation.html#multiport>. | |
298 | There are both ISA and PCI versions. | |
299 | ||
300 | config RIO_OLDPCI | |
301 | bool "Support really old RIO/PCI cards" | |
302 | depends on RIO | |
303 | help | |
304 | Older RIO PCI cards need some initialization-time configuration to | |
305 | determine the IRQ and some control addresses. If you have a RIO and | |
306 | this doesn't seem to work, try setting this to Y. | |
307 | ||
308 | config STALDRV | |
309 | bool "Stallion multiport serial support" | |
310 | depends on SERIAL_NONSTANDARD | |
311 | help | |
312 | Stallion cards give you many serial ports. You would need something | |
313 | like this to connect more than two modems to your Linux box, for | |
314 | instance in order to become a dial-in server. If you say Y here, | |
315 | you will be asked for your specific card model in the next | |
316 | questions. Make sure to read <file:Documentation/stallion.txt> in | |
317 | this case. If you have never heard about all this, it's safe to | |
318 | say N. | |
319 | ||
320 | config STALLION | |
321 | tristate "Stallion EasyIO or EC8/32 support" | |
322 | depends on STALDRV && BROKEN_ON_SMP | |
323 | help | |
324 | If you have an EasyIO or EasyConnection 8/32 multiport Stallion | |
325 | card, then this is for you; say Y. Make sure to read | |
326 | <file:Documentation/stallion.txt>. | |
327 | ||
328 | To compile this driver as a module, choose M here: the | |
329 | module will be called stallion. | |
330 | ||
331 | config ISTALLION | |
332 | tristate "Stallion EC8/64, ONboard, Brumby support" | |
333 | depends on STALDRV && BROKEN_ON_SMP | |
334 | help | |
335 | If you have an EasyConnection 8/64, ONboard, Brumby or Stallion | |
336 | serial multiport card, say Y here. Make sure to read | |
337 | <file:Documentation/stallion.txt>. | |
338 | ||
339 | To compile this driver as a module, choose M here: the | |
340 | module will be called istallion. | |
341 | ||
342 | config AU1000_UART | |
343 | bool "Enable Au1000 UART Support" | |
344 | depends on SERIAL_NONSTANDARD && MIPS | |
345 | help | |
346 | If you have an Alchemy AU1000 processor (MIPS based) and you want | |
347 | to use serial ports, say Y. Otherwise, say N. | |
348 | ||
349 | config AU1000_SERIAL_CONSOLE | |
350 | bool "Enable Au1000 serial console" | |
351 | depends on AU1000_UART | |
352 | help | |
353 | If you have an Alchemy AU1000 processor (MIPS based) and you want | |
354 | to use a console on a serial port, say Y. Otherwise, say N. | |
355 | ||
356 | config QTRONIX_KEYBOARD | |
357 | bool "Enable Qtronix 990P Keyboard Support" | |
358 | depends on IT8712 | |
359 | help | |
360 | Images of Qtronix keyboards are at | |
361 | <http://www.qtronix.com/keyboard.html>. | |
362 | ||
363 | config IT8172_CIR | |
364 | bool | |
365 | depends on QTRONIX_KEYBOARD | |
366 | default y | |
367 | ||
368 | config IT8172_SCR0 | |
369 | bool "Enable Smart Card Reader 0 Support " | |
370 | depends on IT8712 | |
371 | help | |
372 | Say Y here to support smart-card reader 0 (SCR0) on the Integrated | |
373 | Technology Express, Inc. ITE8172 SBC. Vendor page at | |
374 | <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the | |
375 | board at <http://www.mvista.com/partners/semiconductor/ite.html>. | |
376 | ||
377 | config IT8172_SCR1 | |
378 | bool "Enable Smart Card Reader 1 Support " | |
379 | depends on IT8712 | |
380 | help | |
381 | Say Y here to support smart-card reader 1 (SCR1) on the Integrated | |
382 | Technology Express, Inc. ITE8172 SBC. Vendor page at | |
383 | <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the | |
384 | board at <http://www.mvista.com/partners/semiconductor/ite.html>. | |
385 | ||
386 | config A2232 | |
387 | tristate "Commodore A2232 serial support (EXPERIMENTAL)" | |
388 | depends on EXPERIMENTAL && ZORRO && BROKEN_ON_SMP | |
389 | ---help--- | |
390 | This option supports the 2232 7-port serial card shipped with the | |
391 | Amiga 2000 and other Zorro-bus machines, dating from 1989. At | |
392 | a max of 19,200 bps, the ports are served by a 6551 ACIA UART chip | |
393 | each, plus a 8520 CIA, and a master 6502 CPU and buffer as well. The | |
394 | ports were connected with 8 pin DIN connectors on the card bracket, | |
395 | for which 8 pin to DB25 adapters were supplied. The card also had | |
396 | jumpers internally to toggle various pinning configurations. | |
397 | ||
398 | This driver can be built as a module; but then "generic_serial" | |
399 | will also be built as a module. This has to be loaded before | |
400 | "ser_a2232". If you want to do this, answer M here. | |
401 | ||
402 | config SGI_SNSC | |
403 | bool "SGI Altix system controller communication support" | |
404 | depends on (IA64_SGI_SN2 || IA64_GENERIC) | |
405 | help | |
406 | If you have an SGI Altix and you want to enable system | |
407 | controller communication from user space (you want this!), | |
408 | say Y. Otherwise, say N. | |
409 | ||
e1e19747 BL |
410 | config SGI_TIOCX |
411 | bool "SGI TIO CX driver support" | |
412 | depends on (IA64_SGI_SN2 || IA64_GENERIC) | |
413 | help | |
414 | If you have an SGI Altix and you have fpga devices attached | |
415 | to your TIO, say Y here, otherwise say N. | |
416 | ||
417 | config SGI_MBCS | |
418 | tristate "SGI FPGA Core Services driver support" | |
ae40aae9 | 419 | depends on SGI_TIOCX |
e1e19747 BL |
420 | help |
421 | If you have an SGI Altix with an attached SABrick | |
422 | say Y or M here, otherwise say N. | |
423 | ||
1da177e4 LT |
424 | source "drivers/serial/Kconfig" |
425 | ||
426 | config UNIX98_PTYS | |
427 | bool "Unix98 PTY support" if EMBEDDED | |
428 | default y | |
429 | ---help--- | |
430 | A pseudo terminal (PTY) is a software device consisting of two | |
431 | halves: a master and a slave. The slave device behaves identical to | |
432 | a physical terminal; the master device is used by a process to | |
433 | read data from and write data to the slave, thereby emulating a | |
434 | terminal. Typical programs for the master side are telnet servers | |
435 | and xterms. | |
436 | ||
437 | Linux has traditionally used the BSD-like names /dev/ptyxx for | |
438 | masters and /dev/ttyxx for slaves of pseudo terminals. This scheme | |
439 | has a number of problems. The GNU C library glibc 2.1 and later, | |
440 | however, supports the Unix98 naming standard: in order to acquire a | |
441 | pseudo terminal, a process opens /dev/ptmx; the number of the pseudo | |
442 | terminal is then made available to the process and the pseudo | |
443 | terminal slave can be accessed as /dev/pts/<number>. What was | |
444 | traditionally /dev/ttyp2 will then be /dev/pts/2, for example. | |
445 | ||
446 | All modern Linux systems use the Unix98 ptys. Say Y unless | |
447 | you're on an embedded system and want to conserve memory. | |
448 | ||
449 | config LEGACY_PTYS | |
450 | bool "Legacy (BSD) PTY support" | |
451 | default y | |
452 | ---help--- | |
453 | A pseudo terminal (PTY) is a software device consisting of two | |
454 | halves: a master and a slave. The slave device behaves identical to | |
455 | a physical terminal; the master device is used by a process to | |
456 | read data from and write data to the slave, thereby emulating a | |
457 | terminal. Typical programs for the master side are telnet servers | |
458 | and xterms. | |
459 | ||
460 | Linux has traditionally used the BSD-like names /dev/ptyxx | |
461 | for masters and /dev/ttyxx for slaves of pseudo | |
462 | terminals. This scheme has a number of problems, including | |
463 | security. This option enables these legacy devices; on most | |
464 | systems, it is safe to say N. | |
465 | ||
466 | ||
467 | config LEGACY_PTY_COUNT | |
468 | int "Maximum number of legacy PTY in use" | |
469 | depends on LEGACY_PTYS | |
470 | range 1 256 | |
471 | default "256" | |
472 | ---help--- | |
473 | The maximum number of legacy PTYs that can be used at any one time. | |
474 | The default is 256, and should be more than enough. Embedded | |
475 | systems may want to reduce this to save memory. | |
476 | ||
477 | When not in use, each legacy PTY occupies 12 bytes on 32-bit | |
478 | architectures and 24 bytes on 64-bit architectures. | |
479 | ||
480 | config PRINTER | |
481 | tristate "Parallel printer support" | |
482 | depends on PARPORT | |
483 | ---help--- | |
484 | If you intend to attach a printer to the parallel port of your Linux | |
485 | box (as opposed to using a serial printer; if the connector at the | |
486 | printer has 9 or 25 holes ["female"], then it's serial), say Y. | |
487 | Also read the Printing-HOWTO, available from | |
488 | <http://www.tldp.org/docs.html#howto>. | |
489 | ||
490 | It is possible to share one parallel port among several devices | |
491 | (e.g. printer and ZIP drive) and it is safe to compile the | |
492 | corresponding drivers into the kernel. | |
493 | ||
494 | To compile this driver as a module, choose M here and read | |
495 | <file:Documentation/parport.txt>. The module will be called lp. | |
496 | ||
497 | If you have several parallel ports, you can specify which ports to | |
498 | use with the "lp" kernel command line option. (Try "man bootparam" | |
499 | or see the documentation of your boot loader (lilo or loadlin) about | |
500 | how to pass options to the kernel at boot time.) The syntax of the | |
501 | "lp" command line option can be found in <file:drivers/char/lp.c>. | |
502 | ||
503 | If you have more than 8 printers, you need to increase the LP_NO | |
504 | macro in lp.c and the PARPORT_MAX macro in parport.h. | |
505 | ||
506 | config LP_CONSOLE | |
507 | bool "Support for console on line printer" | |
508 | depends on PRINTER | |
509 | ---help--- | |
510 | If you want kernel messages to be printed out as they occur, you | |
511 | can have a console on the printer. This option adds support for | |
512 | doing that; to actually get it to happen you need to pass the | |
513 | option "console=lp0" to the kernel at boot time. | |
514 | ||
515 | If the printer is out of paper (or off, or unplugged, or too | |
516 | busy..) the kernel will stall until the printer is ready again. | |
517 | By defining CONSOLE_LP_STRICT to 0 (at your own risk) you | |
518 | can make the kernel continue when this happens, | |
519 | but it'll lose the kernel messages. | |
520 | ||
521 | If unsure, say N. | |
522 | ||
523 | config PPDEV | |
524 | tristate "Support for user-space parallel port device drivers" | |
525 | depends on PARPORT | |
526 | ---help--- | |
527 | Saying Y to this adds support for /dev/parport device nodes. This | |
528 | is needed for programs that want portable access to the parallel | |
529 | port, for instance deviceid (which displays Plug-and-Play device | |
530 | IDs). | |
531 | ||
532 | This is the parallel port equivalent of SCSI generic support (sg). | |
533 | It is safe to say N to this -- it is not needed for normal printing | |
534 | or parallel port CD-ROM/disk support. | |
535 | ||
536 | To compile this driver as a module, choose M here: the | |
537 | module will be called ppdev. | |
538 | ||
539 | If unsure, say N. | |
540 | ||
541 | config TIPAR | |
542 | tristate "Texas Instruments parallel link cable support" | |
543 | depends on PARPORT | |
544 | ---help--- | |
545 | If you own a Texas Instruments graphing calculator and use a | |
546 | parallel link cable, then you might be interested in this driver. | |
547 | ||
548 | If you enable this driver, you will be able to communicate with | |
549 | your calculator through a set of device nodes under /dev. The | |
550 | main advantage of this driver is that you don't have to be root | |
551 | to use this precise link cable (depending on the permissions on | |
552 | the device nodes, though). | |
553 | ||
554 | To compile this driver as a module, choose M here: the | |
555 | module will be called tipar. | |
556 | ||
557 | If you don't know what a parallel link cable is or what a Texas | |
558 | Instruments graphing calculator is, then you probably don't need this | |
559 | driver. | |
560 | ||
561 | If unsure, say N. | |
562 | ||
563 | config HVC_CONSOLE | |
564 | bool "pSeries Hypervisor Virtual Console support" | |
565 | depends on PPC_PSERIES | |
566 | help | |
567 | pSeries machines when partitioned support a hypervisor virtual | |
568 | console. This driver allows each pSeries partition to have a console | |
569 | which is accessed via the HMC. | |
570 | ||
571 | config HVCS | |
572 | tristate "IBM Hypervisor Virtual Console Server support" | |
573 | depends on PPC_PSERIES | |
574 | help | |
575 | Partitionable IBM Power5 ppc64 machines allow hosting of | |
576 | firmware virtual consoles from one Linux partition by | |
577 | another Linux partition. This driver allows console data | |
578 | from Linux partitions to be accessed through TTY device | |
579 | interfaces in the device tree of a Linux partition running | |
580 | this driver. | |
581 | ||
582 | To compile this driver as a module, choose M here: the | |
583 | module will be called hvcs.ko. Additionally, this module | |
584 | will depend on arch specific APIs exported from hvcserver.ko | |
585 | which will also be compiled when this driver is built as a | |
586 | module. | |
587 | ||
588 | source "drivers/char/ipmi/Kconfig" | |
589 | ||
590 | source "drivers/char/watchdog/Kconfig" | |
591 | ||
592 | config DS1620 | |
593 | tristate "NetWinder thermometer support" | |
594 | depends on ARCH_NETWINDER | |
595 | help | |
596 | Say Y here to include support for the thermal management hardware | |
597 | found in the NetWinder. This driver allows the user to control the | |
598 | temperature set points and to read the current temperature. | |
599 | ||
600 | It is also possible to say M here to build it as a module (ds1620) | |
601 | It is recommended to be used on a NetWinder, but it is not a | |
602 | necessity. | |
603 | ||
604 | config NWBUTTON | |
605 | tristate "NetWinder Button" | |
606 | depends on ARCH_NETWINDER | |
607 | ---help--- | |
608 | If you say Y here and create a character device node /dev/nwbutton | |
609 | with major and minor numbers 10 and 158 ("man mknod"), then every | |
610 | time the orange button is pressed a number of times, the number of | |
611 | times the button was pressed will be written to that device. | |
612 | ||
613 | This is most useful for applications, as yet unwritten, which | |
614 | perform actions based on how many times the button is pressed in a | |
615 | row. | |
616 | ||
617 | Do not hold the button down for too long, as the driver does not | |
618 | alter the behaviour of the hardware reset circuitry attached to the | |
619 | button; it will still execute a hard reset if the button is held | |
620 | down for longer than approximately five seconds. | |
621 | ||
622 | To compile this driver as a module, choose M here: the | |
623 | module will be called nwbutton. | |
624 | ||
625 | Most people will answer Y to this question and "Reboot Using Button" | |
626 | below to be able to initiate a system shutdown from the button. | |
627 | ||
628 | config NWBUTTON_REBOOT | |
629 | bool "Reboot Using Button" | |
630 | depends on NWBUTTON | |
631 | help | |
632 | If you say Y here, then you will be able to initiate a system | |
633 | shutdown and reboot by pressing the orange button a number of times. | |
634 | The number of presses to initiate the shutdown is two by default, | |
635 | but this can be altered by modifying the value of NUM_PRESSES_REBOOT | |
636 | in nwbutton.h and recompiling the driver or, if you compile the | |
637 | driver as a module, you can specify the number of presses at load | |
638 | time with "insmod button reboot_count=<something>". | |
639 | ||
640 | config NWFLASH | |
641 | tristate "NetWinder flash support" | |
642 | depends on ARCH_NETWINDER | |
643 | ---help--- | |
644 | If you say Y here and create a character device /dev/flash with | |
645 | major 10 and minor 160 you can manipulate the flash ROM containing | |
646 | the NetWinder firmware. Be careful as accidentally overwriting the | |
647 | flash contents can render your computer unbootable. On no account | |
648 | allow random users access to this device. :-) | |
649 | ||
650 | To compile this driver as a module, choose M here: the | |
651 | module will be called nwflash. | |
652 | ||
653 | If you're not sure, say N. | |
654 | ||
655 | config HW_RANDOM | |
656 | tristate "Intel/AMD/VIA HW Random Number Generator support" | |
657 | depends on (X86 || IA64) && PCI | |
658 | ---help--- | |
659 | This driver provides kernel-side support for the Random Number | |
660 | Generator hardware found on Intel i8xx-based motherboards, | |
661 | AMD 76x-based motherboards, and Via Nehemiah CPUs. | |
662 | ||
663 | Provides a character driver, used to read() entropy data. | |
664 | ||
665 | To compile this driver as a module, choose M here: the | |
666 | module will be called hw_random. | |
667 | ||
668 | If unsure, say N. | |
669 | ||
670 | config NVRAM | |
671 | tristate "/dev/nvram support" | |
0d078f6f | 672 | depends on ATARI || X86 || ARM || GENERIC_NVRAM |
1da177e4 LT |
673 | ---help--- |
674 | If you say Y here and create a character special file /dev/nvram | |
675 | with major number 10 and minor number 144 using mknod ("man mknod"), | |
676 | you get read and write access to the extra bytes of non-volatile | |
677 | memory in the real time clock (RTC), which is contained in every PC | |
678 | and most Ataris. The actual number of bytes varies, depending on the | |
679 | nvram in the system, but is usually 114 (128-14 for the RTC). | |
680 | ||
681 | This memory is conventionally called "CMOS RAM" on PCs and "NVRAM" | |
682 | on Ataris. /dev/nvram may be used to view settings there, or to | |
683 | change them (with some utility). It could also be used to frequently | |
684 | save a few bits of very important data that may not be lost over | |
685 | power-off and for which writing to disk is too insecure. Note | |
686 | however that most NVRAM space in a PC belongs to the BIOS and you | |
687 | should NEVER idly tamper with it. See Ralf Brown's interrupt list | |
688 | for a guide to the use of CMOS bytes by your BIOS. | |
689 | ||
690 | On Atari machines, /dev/nvram is always configured and does not need | |
691 | to be selected. | |
692 | ||
693 | To compile this driver as a module, choose M here: the | |
694 | module will be called nvram. | |
695 | ||
696 | config RTC | |
697 | tristate "Enhanced Real Time Clock Support" | |
2919b510 | 698 | depends on !PPC32 && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV |
1da177e4 LT |
699 | ---help--- |
700 | If you say Y here and create a character special file /dev/rtc with | |
701 | major number 10 and minor number 135 using mknod ("man mknod"), you | |
702 | will get access to the real time clock (or hardware clock) built | |
703 | into your computer. | |
704 | ||
705 | Every PC has such a clock built in. It can be used to generate | |
706 | signals from as low as 1Hz up to 8192Hz, and can also be used | |
707 | as a 24 hour alarm. It reports status information via the file | |
708 | /proc/driver/rtc and its behaviour is set by various ioctls on | |
709 | /dev/rtc. | |
710 | ||
711 | If you run Linux on a multiprocessor machine and said Y to | |
712 | "Symmetric Multi Processing" above, you should say Y here to read | |
713 | and set the RTC in an SMP compatible fashion. | |
714 | ||
715 | If you think you have a use for such a device (such as periodic data | |
716 | sampling), then say Y here, and read <file:Documentation/rtc.txt> | |
717 | for details. | |
718 | ||
719 | To compile this driver as a module, choose M here: the | |
720 | module will be called rtc. | |
721 | ||
722 | config SGI_DS1286 | |
723 | tristate "SGI DS1286 RTC support" | |
724 | depends on SGI_IP22 | |
725 | help | |
726 | If you say Y here and create a character special file /dev/rtc with | |
727 | major number 10 and minor number 135 using mknod ("man mknod"), you | |
728 | will get access to the real time clock built into your computer. | |
729 | Every SGI has such a clock built in. It reports status information | |
730 | via the file /proc/rtc and its behaviour is set by various ioctls on | |
731 | /dev/rtc. | |
732 | ||
733 | config SGI_IP27_RTC | |
734 | bool "SGI M48T35 RTC support" | |
735 | depends on SGI_IP27 | |
736 | help | |
737 | If you say Y here and create a character special file /dev/rtc with | |
738 | major number 10 and minor number 135 using mknod ("man mknod"), you | |
739 | will get access to the real time clock built into your computer. | |
740 | Every SGI has such a clock built in. It reports status information | |
741 | via the file /proc/rtc and its behaviour is set by various ioctls on | |
742 | /dev/rtc. | |
743 | ||
744 | config GEN_RTC | |
745 | tristate "Generic /dev/rtc emulation" | |
2919b510 | 746 | depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV |
1da177e4 LT |
747 | ---help--- |
748 | If you say Y here and create a character special file /dev/rtc with | |
749 | major number 10 and minor number 135 using mknod ("man mknod"), you | |
750 | will get access to the real time clock (or hardware clock) built | |
751 | into your computer. | |
752 | ||
753 | It reports status information via the file /proc/driver/rtc and its | |
754 | behaviour is set by various ioctls on /dev/rtc. If you enable the | |
755 | "extended RTC operation" below it will also provide an emulation | |
756 | for RTC_UIE which is required by some programs and may improve | |
757 | precision in some cases. | |
758 | ||
759 | To compile this driver as a module, choose M here: the | |
760 | module will be called genrtc. | |
761 | ||
762 | config GEN_RTC_X | |
763 | bool "Extended RTC operation" | |
764 | depends on GEN_RTC | |
765 | help | |
766 | Provides an emulation for RTC_UIE which is required by some programs | |
767 | and may improve precision of the generic RTC support in some cases. | |
768 | ||
769 | config EFI_RTC | |
770 | bool "EFI Real Time Clock Services" | |
771 | depends on IA64 | |
772 | ||
773 | config DS1302 | |
774 | tristate "DS1302 RTC support" | |
775 | depends on M32R && (PLAT_M32700UT || PLAT_OPSPUT) | |
776 | help | |
777 | If you say Y here and create a character special file /dev/rtc with | |
778 | major number 121 and minor number 0 using mknod ("man mknod"), you | |
779 | will get access to the real time clock (or hardware clock) built | |
780 | into your computer. | |
781 | ||
782 | config S3C2410_RTC | |
783 | bool "S3C2410 RTC Driver" | |
784 | depends on ARCH_S3C2410 | |
785 | help | |
786 | RTC (Realtime Clock) driver for the clock inbuilt into the | |
787 | Samsung S3C2410. This can provide periodic interrupt rates | |
788 | from 1Hz to 64Hz for user programs, and wakeup from Alarm. | |
789 | ||
790 | config RTC_VR41XX | |
791 | tristate "NEC VR4100 series Real Time Clock Support" | |
792 | depends on CPU_VR41XX | |
793 | ||
794 | config COBALT_LCD | |
795 | bool "Support for Cobalt LCD" | |
796 | depends on MIPS_COBALT | |
797 | help | |
798 | This option enables support for the LCD display and buttons found | |
799 | on Cobalt systems through a misc device. | |
800 | ||
801 | config DTLK | |
802 | tristate "Double Talk PC internal speech card support" | |
803 | help | |
804 | This driver is for the DoubleTalk PC, a speech synthesizer | |
805 | manufactured by RC Systems (<http://www.rcsys.com/>). It is also | |
806 | called the `internal DoubleTalk'. | |
807 | ||
808 | To compile this driver as a module, choose M here: the | |
809 | module will be called dtlk. | |
810 | ||
811 | config R3964 | |
812 | tristate "Siemens R3964 line discipline" | |
813 | ---help--- | |
814 | This driver allows synchronous communication with devices using the | |
815 | Siemens R3964 packet protocol. Unless you are dealing with special | |
816 | hardware like PLCs, you are unlikely to need this. | |
817 | ||
818 | To compile this driver as a module, choose M here: the | |
819 | module will be called n_r3964. | |
820 | ||
821 | If unsure, say N. | |
822 | ||
823 | config APPLICOM | |
824 | tristate "Applicom intelligent fieldbus card support" | |
825 | depends on PCI | |
826 | ---help--- | |
827 | This driver provides the kernel-side support for the intelligent | |
828 | fieldbus cards made by Applicom International. More information | |
829 | about these cards can be found on the WWW at the address | |
830 | <http://www.applicom-int.com/>, or by email from David Woodhouse | |
831 | <dwmw2@infradead.org>. | |
832 | ||
833 | To compile this driver as a module, choose M here: the | |
834 | module will be called applicom. | |
835 | ||
836 | If unsure, say N. | |
837 | ||
838 | config SONYPI | |
839 | tristate "Sony Vaio Programmable I/O Control Device support (EXPERIMENTAL)" | |
840 | depends on EXPERIMENTAL && X86 && PCI && INPUT && !64BIT | |
841 | ---help--- | |
842 | This driver enables access to the Sony Programmable I/O Control | |
843 | Device which can be found in many (all ?) Sony Vaio laptops. | |
844 | ||
845 | If you have one of those laptops, read | |
846 | <file:Documentation/sonypi.txt>, and say Y or M here. | |
847 | ||
848 | To compile this driver as a module, choose M here: the | |
849 | module will be called sonypi. | |
850 | ||
851 | config TANBAC_TB0219 | |
852 | tristate "TANBAC TB0219 base board support" | |
63b799f9 | 853 | depends TANBAC_TB022X |
1da177e4 LT |
854 | |
855 | menu "Ftape, the floppy tape device driver" | |
856 | ||
857 | config FTAPE | |
858 | tristate "Ftape (QIC-80/Travan) support" | |
859 | depends on BROKEN_ON_SMP && (ALPHA || X86) | |
860 | ---help--- | |
861 | If you have a tape drive that is connected to your floppy | |
862 | controller, say Y here. | |
863 | ||
864 | Some tape drives (like the Seagate "Tape Store 3200" or the Iomega | |
865 | "Ditto 3200" or the Exabyte "Eagle TR-3") come with a "high speed" | |
866 | controller of their own. These drives (and their companion | |
867 | controllers) are also supported if you say Y here. | |
868 | ||
869 | If you have a special controller (such as the CMS FC-10, FC-20, | |
870 | Mountain Mach-II, or any controller that is based on the Intel 82078 | |
871 | FDC like the high speed controllers by Seagate and Exabyte and | |
872 | Iomega's "Ditto Dash") you must configure it by selecting the | |
873 | appropriate entries from the "Floppy tape controllers" sub-menu | |
874 | below and possibly modify the default values for the IRQ and DMA | |
875 | channel and the IO base in ftape's configuration menu. | |
876 | ||
877 | If you want to use your floppy tape drive on a PCI-bus based system, | |
878 | please read the file <file:drivers/char/ftape/README.PCI>. | |
879 | ||
880 | The ftape kernel driver is also available as a runtime loadable | |
881 | module. To compile this driver as a module, choose M here: the | |
882 | module will be called ftape. | |
883 | ||
1da177e4 LT |
884 | source "drivers/char/ftape/Kconfig" |
885 | ||
886 | endmenu | |
887 | ||
888 | source "drivers/char/agp/Kconfig" | |
889 | ||
890 | source "drivers/char/drm/Kconfig" | |
891 | ||
892 | source "drivers/char/pcmcia/Kconfig" | |
893 | ||
894 | config MWAVE | |
895 | tristate "ACP Modem (Mwave) support" | |
896 | depends on X86 | |
897 | select SERIAL_8250 | |
898 | ---help--- | |
899 | The ACP modem (Mwave) for Linux is a WinModem. It is composed of a | |
900 | kernel driver and a user level application. Together these components | |
901 | support direct attachment to public switched telephone networks (PSTNs) | |
902 | and support selected world wide countries. | |
903 | ||
904 | This version of the ACP Modem driver supports the IBM Thinkpad 600E, | |
905 | 600, and 770 that include on board ACP modem hardware. | |
906 | ||
907 | The modem also supports the standard communications port interface | |
908 | (ttySx) and is compatible with the Hayes AT Command Set. | |
909 | ||
910 | The user level application needed to use this driver can be found at | |
911 | the IBM Linux Technology Center (LTC) web site: | |
912 | <http://www.ibm.com/linux/ltc/>. | |
913 | ||
914 | If you own one of the above IBM Thinkpads which has the Mwave chipset | |
915 | in it, say Y. | |
916 | ||
917 | To compile this driver as a module, choose M here: the | |
918 | module will be called mwave. | |
919 | ||
920 | config SCx200_GPIO | |
921 | tristate "NatSemi SCx200 GPIO Support" | |
922 | depends on SCx200 | |
923 | help | |
924 | Give userspace access to the GPIO pins on the National | |
925 | Semiconductor SCx200 processors. | |
926 | ||
927 | If compiled as a module, it will be called scx200_gpio. | |
928 | ||
e329113c BG |
929 | config CS5535_GPIO |
930 | tristate "AMD CS5535/CS5536 GPIO (Geode Companion Device)" | |
931 | depends on X86_32 | |
932 | help | |
933 | Give userspace access to the GPIO pins on the AMD CS5535 and | |
934 | CS5536 Geode companion devices. | |
935 | ||
936 | If compiled as a module, it will be called cs5535_gpio. | |
937 | ||
e400bae9 YY |
938 | config GPIO_VR41XX |
939 | tristate "NEC VR4100 series General-purpose I/O Unit support" | |
940 | depends on CPU_VR41XX | |
941 | ||
1da177e4 LT |
942 | config RAW_DRIVER |
943 | tristate "RAW driver (/dev/raw/rawN) (OBSOLETE)" | |
944 | help | |
945 | The raw driver permits block devices to be bound to /dev/raw/rawN. | |
946 | Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O. | |
947 | See the raw(8) manpage for more details. | |
948 | ||
98e7f294 AB |
949 | The raw driver is deprecated and will be removed soon. |
950 | Applications should simply open the device (eg /dev/hda1) | |
1da177e4 LT |
951 | with the O_DIRECT flag. |
952 | ||
0de502aa AM |
953 | config MAX_RAW_DEVS |
954 | int "Maximum number of RAW devices to support (1-8192)" | |
955 | depends on RAW_DRIVER | |
956 | default "256" | |
957 | help | |
958 | The maximum number of RAW devices that are supported. | |
959 | Default is 256. Increase this number in case you need lots of | |
960 | raw devices. | |
961 | ||
1da177e4 LT |
962 | config HPET |
963 | bool "HPET - High Precision Event Timer" if (X86 || IA64) | |
964 | default n | |
965 | depends on ACPI | |
966 | help | |
967 | If you say Y here, you will have a miscdevice named "/dev/hpet/". Each | |
968 | open selects one of the timers supported by the HPET. The timers are | |
969 | non-periodioc and/or periodic. | |
970 | ||
971 | config HPET_RTC_IRQ | |
972 | bool "HPET Control RTC IRQ" if !HPET_EMULATE_RTC | |
973 | default n | |
974 | depends on HPET | |
975 | help | |
976 | If you say Y here, you will disable RTC_IRQ in drivers/char/rtc.c. It | |
977 | is assumed the platform called hpet_alloc with the RTC IRQ values for | |
978 | the HPET timers. | |
979 | ||
980 | config HPET_MMAP | |
981 | bool "Allow mmap of HPET" | |
982 | default y | |
983 | depends on HPET | |
984 | help | |
985 | If you say Y here, user applications will be able to mmap | |
986 | the HPET registers. | |
987 | ||
988 | In some hardware implementations, the page containing HPET | |
989 | registers may also contain other things that shouldn't be | |
990 | exposed to the user. If this applies to your hardware, | |
991 | say N here. | |
992 | ||
1da177e4 LT |
993 | config HANGCHECK_TIMER |
994 | tristate "Hangcheck timer" | |
3633b047 | 995 | depends on X86 || IA64 || PPC64 |
1da177e4 LT |
996 | help |
997 | The hangcheck-timer module detects when the system has gone | |
998 | out to lunch past a certain margin. It can reboot the system | |
999 | or merely print a warning. | |
1000 | ||
1001 | config MMTIMER | |
1002 | tristate "MMTIMER Memory mapped RTC for SGI Altix" | |
1003 | depends on IA64_GENERIC || IA64_SGI_SN2 | |
1004 | default y | |
1005 | help | |
1006 | The mmtimer device allows direct userspace access to the | |
1007 | Altix system timer. | |
1008 | ||
1009 | source "drivers/char/tpm/Kconfig" | |
1010 | ||
1a80ba88 MG |
1011 | config TELCLOCK |
1012 | tristate "Telecom clock driver for MPBL0010 ATCA SBC" | |
1013 | depends on EXPERIMENTAL | |
1014 | default n | |
1015 | help | |
1016 | The telecom clock device is specific to the MPBL0010 ATCA computer and | |
1017 | allows direct userspace access to the configuration of the telecom clock | |
1018 | configuration settings. This device is used for hardware synchronization | |
1019 | across the ATCA backplane fabric. Upon loading, the driver exports a | |
1020 | sysfs directory, /sys/devices/platform/telco_clock, with a number of | |
1021 | files for controlling the behavior of this hardware. | |
1022 | ||
1da177e4 LT |
1023 | endmenu |
1024 |