]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/commit
staging: comedi: c6xdigio: add readback of last pwm channel values
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Mon, 10 Mar 2014 21:07:40 +0000 (14:07 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 17 Mar 2014 21:04:00 +0000 (14:04 -0700)
commit8d9c93b4481f03a4f7658b97d6dc8996470a71e5
tree4788bd0baef61eaa07aa1647b805e412bc23282c
parenta7b31d3996a866408ebd6d16992d166b0207c7c1
staging: comedi: c6xdigio: add readback of last pwm channel values

Add and (*insn_read) for the PWM subdevice to allow reading back the
last value written to the channels.

There are only 2 PWM channels and they have a maxdata of 500. Pack
the last values in the subdevice 'state' instead of adding a private
data struct to this driver.

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/c6xdigio.c