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staging: comedi: dt282x: remove unused chan_to_DAC() macro

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This macro is not used in the driver. Remove it.

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 2014-06-20 13:12:44 -07:00 • committed by Greg Kroah-Hartman
commit 6ee9c91fbb
1 changed files with 0 additions and 5 deletions
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5
drivers/staging/comedi/drivers/dt282x.c
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@ -345,11 +345,6 @@ struct dt282x_private {
int dma_dir;
};
/*
* Some useless abstractions
*/
#define chan_to_DAC(a) ((a)&1)
static int prep_ai_dma(struct comedi_device *dev, int dma_index, int n)
{
struct dt282x_private *devpriv = dev->private;