From: H Hartley Sweeten Date: Fri, 20 Sep 2013 23:36:44 +0000 (-0700) Subject: staging: comedi: pcl711: tidy up the subdevice init X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=bca757ad539aa4f826f4d335f4fcc670e85dcc9b;p=deliverable%2Flinux.git staging: comedi: pcl711: tidy up the subdevice init For aesthetic reasons, add some whitespace to the subdevice init. The 's->len_chanlist' is only used with asynchronous command support. Remove the unnecessary initialization of this member in the subdevices that do not support commands. For the analog input subdevice, move the initialization so it only occurs when commands are supported. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c index 173e6c639334..9f48b02ae7f9 100644 --- a/drivers/staging/comedi/drivers/pcl711.c +++ b/drivers/staging/comedi/drivers/pcl711.c @@ -496,53 +496,49 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (!devpriv) return -ENOMEM; + /* Analog Input subdevice */ s = &dev->subdevices[0]; - /* AI subdevice */ - s->type = COMEDI_SUBD_AI; - s->subdev_flags = SDF_READABLE | SDF_GROUND; - s->n_chan = board->n_aichan; - s->maxdata = 0xfff; - s->len_chanlist = 1; - s->range_table = board->ai_range_type; - s->insn_read = pcl711_ai_insn; + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_GROUND; + s->n_chan = board->n_aichan; + s->maxdata = 0xfff; + s->range_table = board->ai_range_type; + s->insn_read = pcl711_ai_insn; if (dev->irq) { dev->read_subdev = s; - s->subdev_flags |= SDF_CMD_READ; - s->do_cmdtest = pcl711_ai_cmdtest; - s->do_cmd = pcl711_ai_cmd; + s->subdev_flags |= SDF_CMD_READ; + s->len_chanlist = 1; + s->do_cmdtest = pcl711_ai_cmdtest; + s->do_cmd = pcl711_ai_cmd; } + /* Analog Output subdevice */ s = &dev->subdevices[1]; - /* AO subdevice */ - s->type = COMEDI_SUBD_AO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = board->n_aochan; - s->maxdata = 0xfff; - s->len_chanlist = 1; - s->range_table = &range_bipolar5; - s->insn_write = pcl711_ao_insn; - s->insn_read = pcl711_ao_insn_read; - + s->type = COMEDI_SUBD_AO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = board->n_aochan; + s->maxdata = 0xfff; + s->range_table = &range_bipolar5; + s->insn_write = pcl711_ao_insn; + s->insn_read = pcl711_ao_insn_read; + + /* Digital Input subdevice */ s = &dev->subdevices[2]; - /* 16-bit digital input */ - s->type = COMEDI_SUBD_DI; - s->subdev_flags = SDF_READABLE; - s->n_chan = 16; - s->maxdata = 1; - s->len_chanlist = 16; - s->range_table = &range_digital; - s->insn_bits = pcl711_di_insn_bits; - + s->type = COMEDI_SUBD_DI; + s->subdev_flags = SDF_READABLE; + s->n_chan = 16; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = pcl711_di_insn_bits; + + /* Digital Output subdevice */ s = &dev->subdevices[3]; - /* 16-bit digital out */ - s->type = COMEDI_SUBD_DO; - s->subdev_flags = SDF_WRITABLE; - s->n_chan = 16; - s->maxdata = 1; - s->len_chanlist = 16; - s->range_table = &range_digital; - s->state = 0; - s->insn_bits = pcl711_do_insn_bits; + s->type = COMEDI_SUBD_DO; + s->subdev_flags = SDF_WRITABLE; + s->n_chan = 16; + s->maxdata = 1; + s->range_table = &range_digital; + s->insn_bits = pcl711_do_insn_bits; /* this is the "base value" for the mode register, which is