staging: comedi: pcmuio: introduce pcmuio_read()

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Introduce a helper function to handle reading a 24-bit value from the
three 8-bit registers associated with a "port" or "page".

Simplify the for() loop in pcmuio_handle_asic_interrupt() that finds
which channels have triggered the interrupt.

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>

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H Hartley Sweeten 2013-06-18 13:25:15 -07:00 • committed by Greg Kroah-Hartman

parent 1699d80aef

commit 89aaa92adf

1 changed files with 24 additions and 21 deletions

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drivers/staging/comedi/drivers/pcmuio.c

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