From 95760280bd3a646280b931ec6ec46a893144d42e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Tue, 14 May 2013 13:28:27 -0700 Subject: [PATCH] staging: comedi: usbduxfast: tidy up usbduxfast_attach_common() Remove the unnecessary comments and tidy up the whitespace in this function. Also, remove the dev_info() at the end. It's just added noise. Signed-off-by: H Hartley Sweeten Cc: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/usbduxfast.c | 47 ++++++++------------- 1 file changed, 18 insertions(+), 29 deletions(-) diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c index 1cd6d9252805..f2f4d304d7fc 100644 --- a/drivers/staging/comedi/drivers/usbduxfast.c +++ b/drivers/staging/comedi/drivers/usbduxfast.c @@ -1376,11 +1376,11 @@ static void tidy_up(struct usbduxfast_private *devpriv) static int usbduxfast_attach_common(struct comedi_device *dev, struct usbduxfast_private *devpriv) { - int ret; struct comedi_subdevice *s; + int ret; down(&devpriv->sem); - /* pointer back to the corresponding comedi device */ + devpriv->comedidev = dev; ret = comedi_alloc_subdevices(dev, 1); @@ -1388,38 +1388,27 @@ static int usbduxfast_attach_common(struct comedi_device *dev, up(&devpriv->sem); return ret; } - /* private structure is also simply the usb-structure */ + dev->private = devpriv; - /* the first subdevice is the A/D converter */ + + /* Analog Input subdevice */ s = &dev->subdevices[SUBDEV_AD]; - /* - * the URBs get the comedi subdevice which is responsible for reading - * this is the subdevice which reads data - */ dev->read_subdev = s; - /* the subdevice receives as private structure the usb-structure */ - s->private = NULL; - /* analog input */ - s->type = COMEDI_SUBD_AI; - /* readable and ref is to ground */ - s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; - /* 16 channels */ - s->n_chan = 16; - /* length of the channellist */ - s->len_chanlist = 16; - /* callback functions */ - s->insn_read = usbduxfast_ai_insn_read; - s->do_cmdtest = usbduxfast_ai_cmdtest; - s->do_cmd = usbduxfast_ai_cmd; - s->cancel = usbduxfast_ai_cancel; - /* max value from the A/D converter (12bit+1 bit for overflow) */ - s->maxdata = 0x1000; - /* range table to convert to physical units */ - s->range_table = &range_usbduxfast_ai_range; - /* finally decide that it's attached */ + s->type = COMEDI_SUBD_AI; + s->subdev_flags = SDF_READABLE | SDF_GROUND | SDF_CMD_READ; + s->n_chan = 16; + s->len_chanlist = 16; + s->insn_read = usbduxfast_ai_insn_read; + s->do_cmdtest = usbduxfast_ai_cmdtest; + s->do_cmd = usbduxfast_ai_cmd; + s->cancel = usbduxfast_ai_cancel; + s->maxdata = 0x1000; + s->range_table = &range_usbduxfast_ai_range; + devpriv->attached = 1; + up(&devpriv->sem); - dev_info(dev->class_dev, "successfully attached to usbduxfast.\n"); + return 0; } -- 2.39.2