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(parent: ebf86ea) | patch
staging: comedi: dt282x: IRQ and DMA are needed for async command support
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Fri, 20 Jun 2014 20:12:41 +0000 (13:12 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 27 Jun 2014 00:08:18 +0000 (20:08 -0400)
commitcb3d0d3996fe5c8c4fd7063b4bea890767469cb1
tree6bc1bda87a2b550e7695229090d54712e21a100atree | snapshot
parentebf86ea9a68e2ebb366dc7640f916e233d614db1commit | diff
staging: comedi: dt282x: IRQ and DMA are needed for async command support

This driver requires an IRQ and 2 DMA channels in order to execute async
commands.

Modify the (*attach) so that command support is only hooked up if
DMA is available. This allows removing the extra checks in the
command support functions.

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>
drivers/staging/comedi/drivers/dt282x.c diff | blob | history
Domain: System / Kernel;