From bca757ad539aa4f826f4d335f4fcc670e85dcc9b Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 20 Sep 2013 16:36:44 -0700 Subject: [PATCH] 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 --- drivers/staging/comedi/drivers/pcl711.c | 70 ++++++++++++------------- 1 file changed, 33 insertions(+), 37 deletions(-) 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