staging: comedi: s526: remove cut-and-paste comments from skel driver

These comments are not necessary, they are just cut-and-paste from
the skel driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index 1ae250b..0f1ef98 100644 (file)
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -138,11 +138,6 @@ struct s526GPCTConfig {
        int data[MAX_GPCT_CONFIG_DATA];
 };
 
-/*
- * Board descriptions for two imaginary boards.  Describing the
- * boards in this way is optional, and completely driver-dependent.
- * Some drivers use arrays such as this, other do not.
- */
 struct s526_board {
        const char *name;
        int gpct_chans;
@@ -167,11 +162,6 @@ static const struct s526_board s526_boards[] = {
         }
 };
 
-/* this structure is for data unique to this hardware driver.  If
-   several hardware drivers keep similar information in this structure,
-   feel free to suggest moving the variable to the struct comedi_device
-   struct.
-*/
 struct s526_private {
        unsigned int ao_readback[2];
        struct s526GPCTConfig s526_gpct_config[4];
@@ -496,10 +486,6 @@ static int s526_ai_insn_config(struct comedi_device *dev,
        return result;
 }
 
-/*
- * "instructions" read/write data in "one-shot" or "software-triggered"
- * mode.
- */
 static int s526_ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
                         struct comedi_insn *insn, unsigned int *data)
 {
@@ -552,30 +538,18 @@ static int s526_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
        unsigned short val;
 
        val = chan << 1;
-/* outw(val, dev->iobase + REG_DAC); */
        outw(val, dev->iobase + REG_DAC);
 
-       /* Writing a list of values to an AO channel is probably not
-        * very useful, but that's how the interface is defined. */
        for (i = 0; i < insn->n; i++) {
-               /* a typical programming sequence */
-               /* write the data to preload register
-                * outw(data[i], dev->iobase + REG_ADD);
-                */
-               /* write the data to preload register */
                outw(data[i], dev->iobase + REG_ADD);
                devpriv->ao_readback[chan] = data[i];
-/* outw(val + 1, dev->iobase + REG_DAC);  starts the D/A conversion. */
                /* starts the D/A conversion */
                outw(val + 1, dev->iobase + REG_DAC);
        }
 
-       /* return the number of samples read/written */
        return i;
 }
 
-/* AO subdevices should have a read insn as well as a write insn.
- * Usually this means copying a value stored in devpriv. */
 static int s526_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
                         struct comedi_insn *insn, unsigned int *data)
 {
@@ -589,30 +563,18 @@ static int s526_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
        return i;
 }
 
-/* DIO devices are slightly special.  Although it is possible to
- * implement the insn_read/insn_write interface, it is much more
- * useful to applications if you implement the insn_bits interface.
- * This allows packed reading/writing of the DIO channels.  The
- * comedi core can convert between insn_bits and insn_read/write */
 static int s526_dio_insn_bits(struct comedi_device *dev,
                              struct comedi_subdevice *s,
                              struct comedi_insn *insn, unsigned int *data)
 {
-       /* The insn data is a mask in data[0] and the new data
-        * in data[1], each channel cooresponding to a bit. */
        if (data[0]) {
                s->state &= ~data[0];
                s->state |= data[0] & data[1];
-               /* Write out the new digital output lines */
+
                outw(s->state, dev->iobase + REG_DIO);
        }
 
-       /* on return, data[1] contains the value of the digital
-        * input and output lines. */
        data[1] = inw(dev->iobase + REG_DIO) & 0xff;
-       /* or we could just return the software copy of the output values if
-        * it was a purely digital output subdevice */
-       /* data[1]=s->state & 0xFF; */
 
        return insn->n;
 }
@@ -624,11 +586,6 @@ static int s526_dio_insn_config(struct comedi_device *dev,
        int chan = CR_CHAN(insn->chanspec);
        int group, mask;
 
-       /* The input or output configuration of each digital line is
-        * configured by a special insn_config instruction.  chanspec
-        * contains the channel to be changed, and data[0] contains the
-        * value COMEDI_INPUT or COMEDI_OUTPUT. */
-
        group = chan >> 2;
        mask = 0xF << (group << 2);
        switch (data[0]) {
@@ -682,33 +639,22 @@ static int s526_attach(struct comedi_device *dev, struct comedi_devconfig *it)
        /* GENERAL-PURPOSE COUNTER/TIME (GPCT) */
        s->type = COMEDI_SUBD_COUNTER;
        s->subdev_flags = SDF_READABLE | SDF_WRITABLE | SDF_LSAMPL;
-       /* KG: What does SDF_LSAMPL (see multiq3.c) mean? */
        s->n_chan = board->gpct_chans;
        s->maxdata = 0x00ffffff;        /* 24 bit counter */
        s->insn_read = s526_gpct_rinsn;
        s->insn_config = s526_gpct_insn_config;
        s->insn_write = s526_gpct_winsn;
 
-       /* Command are not implemented yet, however they are necessary to
-          allocate the necessary memory for the comedi_async struct (used
-          to trigger the GPCT in case of pulsegenerator function */
-       /* s->do_cmd = s526_gpct_cmd; */
-       /* s->do_cmdtest = s526_gpct_cmdtest; */
-       /* s->cancel = s526_gpct_cancel; */
-
        s = &dev->subdevices[1];
-       /* dev->read_subdev=s; */
        /* analog input subdevice */
        s->type = COMEDI_SUBD_AI;
-       /* we support differential */
        s->subdev_flags = SDF_READABLE | SDF_DIFF;
        /* channels 0 to 7 are the regular differential inputs */
        /* channel 8 is "reference 0" (+10V), channel 9 is "reference 1" (0V) */
        s->n_chan = 10;
        s->maxdata = 0xffff;
        s->range_table = &range_bipolar10;
-       s->len_chanlist = 16;   /* This is the maximum chanlist length that
-                                  the board can handle */
+       s->len_chanlist = 16;
        s->insn_read = s526_ai_rinsn;
        s->insn_config = s526_ai_insn_config;