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staging: comedi: pcmad: change boardinfo 'n_ai_bits' to 'ai_maxdata'

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This information is only used to set the subdevice 'maxdata'. Change
it so the calculation is not needed.

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>
This commit is contained in:
H Hartley Sweeten 2013-06-05 15:37:53 -07:00 committed by Greg Kroah-Hartman
parent 624b653090
commit d69b55f3d0
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/comedi/drivers/pcmad.c
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@ -50,16 +50,16 @@
struct pcmad_board_struct {
const char *name;
int n_ai_bits;
unsigned int ai_maxdata;
};
static const struct pcmad_board_struct pcmad_boards[] = {
{
.name = "pcmad12",
.n_ai_bits = 12,
.ai_maxdata = 0x0fff,
}, {
.name = "pcmad16",
.n_ai_bits = 16,
.ai_maxdata = 0xffff,
},
};
@ -137,7 +137,7 @@ static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it)
s->subdev_flags = SDF_READABLE | AREF_GROUND;
s->n_chan = 16;
s->len_chanlist = 1;
s->maxdata = (1 << board->n_ai_bits) - 1;
s->maxdata = board->ai_maxdata;
s->range_table = &range_unknown;
s->insn_read = pcmad_ai_insn_read;