staging: comedi: adl_pci9118: introduce pci9118_ai_start_conv()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Thu, 4 Sep 2014 19:14:19 +0000 (12:14 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 8 Sep 2014 20:55:54 +0000 (13:55 -0700)
commit1750bed3f795ad33d9b37c3669f97fe036fa7570
tree523280e5e356b1b96b825ed2157d2a87dcb07f96
parentc7f499bd03aa735d652e086762e48117d2b197b8
staging: comedi: adl_pci9118: introduce pci9118_ai_start_conv()

Writing any value to the "software trigger" register generates a trigger
pulse to start an A/D conversion. Introduce a helper function to clarify
this. For aesthetics, rename the define used for the register.

According to the datasheet the extra delay is not needed after starting
the conversion. 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>
drivers/staging/comedi/drivers/adl_pci9118.c