staging: comedi: s626: fix the number of dio channels
The first digital i/o subdevice has its n_chan set to S626_DIO_CHANNELS which is defined as 48. This is actually the total number of channels provided by all three digital i/o subdevices. Each subdevice only has 16 channels. Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Cc: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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