diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2012-12-19 17:27:02 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-07 14:28:19 -0800 |
| commit | 90a35c15c5d7d5c6254772d2752975dda185710c (patch) | |
| tree | 7f240eb4dcd4d9f90e047a75515b7c8d50ca619d /drivers/staging/comedi/comedidev.h | |
| parent | 71cf6d3ee9351d668e9374d4026bf3337540eb22 (diff) | |
staging: comedi: store the 'index' for each subdevice
Store the 'index' for each comedi_subdevice when they are initially
allocated by comedi_alloc_subdevice(). This allows removing the
pointer math in comedi_fops.c which is used to figure out the
index that user space uses to access the individual subdevices.
Fix the ni_mio_common driver so it also uses the 'index' instead
of doing the pointer math.
Also, remove a couple unused macros in the pcmda12, pcmmio, and
pcmuio drivers which also do the pointer math to figure out the
index.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/comedidev.h')
| -rw-r--r-- | drivers/staging/comedi/comedidev.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 5127dc28d6f6..259996483c66 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -77,6 +77,7 @@ struct comedi_subdevice { struct comedi_device *device; + int index; int type; int n_chan; int subdev_flags; |