forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

staging:iio: Add support for multiple buffers

Browse source 
Route all buffer writes through the demux.
Addition or removal of a buffer results in tear down and
setup of all the buffers for a given device.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Tested-by: srinivas pandruvada <srinivas.pandruvada@intel.com>
This commit is contained in:
Jonathan Cameron 2012-06-30 20:06:00 +01:00
commit 84b36ce5f7
30 changed files with 313 additions and 210 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/linux/iio/iio.h
View file

@ -410,6 +410,7 @@ struct iio_buffer_setup_ops {
* and owner
* @event_interface: [INTERN] event chrdevs associated with interrupt lines
* @buffer: [DRIVER] any buffer present
* @buffer_list: [INTERN] list of all buffers currently attached
* @scan_bytes: [INTERN] num bytes captured to be fed to buffer demux
* @mlock: [INTERN] lock used to prevent simultaneous device state
* changes
@ -448,6 +449,7 @@ struct iio_dev {
struct iio_event_interface *event_interface;
struct iio_buffer *buffer;
struct list_head buffer_list;
int scan_bytes;
struct mutex mlock;