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staging: comedi: s626: async commands require an interrupt

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Only hook up the analog input command support if the interrupt is
available.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten
2013-03-26 15:45:04 -07:00
committed by Greg Kroah-Hartman
parent d3796f7410
commit 2281befd94
1 changed files with 6 additions and 4 deletions
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10
drivers/staging/comedi/drivers/s626.c
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@@ -2641,7 +2641,6 @@ static int s626_auto_attach(struct comedi_device *dev,
s = &dev->subdevices[0];
/* analog input subdevice */
dev->read_subdev = s;
s->type = COMEDI_SUBD_AI;
s->subdev_flags = SDF_READABLE | SDF_DIFF | SDF_CMD_READ;
s->n_chan = S626_ADC_CHANNELS;
@@ -2649,9 +2648,12 @@ static int s626_auto_attach(struct comedi_device *dev,
s->range_table = &s626_range_table;
s->len_chanlist = S626_ADC_CHANNELS;
s->insn_read = s626_ai_insn_read;
s->do_cmd = s626_ai_cmd;
s->do_cmdtest = s626_ai_cmdtest;
s->cancel = s626_ai_cancel;
if (dev->irq) {
dev->read_subdev = s;
s->do_cmd = s626_ai_cmd;
s->do_cmdtest = s626_ai_cmdtest;
s->cancel = s626_ai_cancel;
}
s = &dev->subdevices[1];
/* analog output subdevice */