projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e538dfda MN |
1 | /* |
| 2 | * Provides code common for host and device side USB. | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or | |
| 5 | * modify it under the terms of the GNU General Public License as | |
| 6 | * published by the Free Software Foundation, version 2. | |
| 7 | * | |
| 8 | * If either host side (ie. CONFIG_USB=y) or device side USB stack | |
| 9 | * (ie. CONFIG_USB_GADGET=y) is compiled in the kernel, this module is | |
| 10 | * compiled-in as well. Otherwise, if either of the two stacks is | |
| 11 | * compiled as module, this file is compiled as module as well. | |
| 12 | */ | |
| 13 | ||
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/module.h> | |
| 16 | #include <linux/usb/ch9.h> | |
| 17 | ||
| 18 | const char *usb_speed_string(enum usb_device_speed speed) | |
| 19 | { | |
| 20 | static const char *const names[] = { | |
| 21 | [USB_SPEED_UNKNOWN] = "UNKNOWN", | |
| 22 | [USB_SPEED_LOW] = "low-speed", | |
| 23 | [USB_SPEED_FULL] = "full-speed", | |
| 24 | [USB_SPEED_HIGH] = "high-speed", | |
| 25 | [USB_SPEED_WIRELESS] = "wireless", | |
| 26 | [USB_SPEED_SUPER] = "super-speed", | |
| 27 | }; | |
| 28 | ||
| 29 | if (speed < 0 || speed >= ARRAY_SIZE(names)) | |
| 30 | speed = USB_SPEED_UNKNOWN; | |
| 31 | return names[speed]; | |
| 32 | } | |
| 33 | EXPORT_SYMBOL_GPL(usb_speed_string); | |
| 34 | ||
| d1e3d757 FB |
35 | const char *usb_state_string(enum usb_device_state state) |
| 36 | { | |
| 37 | static const char *const names[] = { | |
| 38 | [USB_STATE_NOTATTACHED] = "not attached", | |
| 39 | [USB_STATE_ATTACHED] = "attached", | |
| 40 | [USB_STATE_POWERED] = "powered", | |
| 41 | [USB_STATE_RECONNECTING] = "reconnecting", | |
| 42 | [USB_STATE_UNAUTHENTICATED] = "unauthenticated", | |
| 43 | [USB_STATE_DEFAULT] = "default", | |
| 44 | [USB_STATE_ADDRESS] = "addresssed", | |
| 45 | [USB_STATE_CONFIGURED] = "configured", | |
| 46 | [USB_STATE_SUSPENDED] = "suspended", | |
| 47 | }; | |
| 48 | ||
| 49 | if (state < 0 || state >= ARRAY_SIZE(names)) | |
| 50 | return "UNKNOWN"; | |
| 51 | ||
| 52 | return names[state]; | |
| 53 | } | |
| 54 | EXPORT_SYMBOL_GPL(usb_state_string); | |
| 55 | ||
| e538dfda | 56 | MODULE_LICENSE("GPL"); |