Media Device Allocator API to allows multiple drivers share a media device. Using this API, drivers can allocate a media device with the shared struct device as the key. Once the media device is allocated by a driver, other drivers can get a reference to it. The media device is released when all the references are released. This patch series has been tested with au0828 and snd-usb-audio drivers. snd-us-audio patch isn't included in this series. Once this patch series is reviews and gets a stable state, I will send out the snd-usb-audio patch. Changes since Patch v1 series: (based on Hans Virkuil's review) - Removed media_device_get() and media_device_allocate(). These are unnecessary. - media_device_usb_allocate() holds media_device_lock to do allocate and initialize the media device. - Changed media_device_put() to media_device_delete() for symmetry with media_device_*_allocate(). - Dropped media_device_unregister_put(). au0828 calls media_device_delete() instead. Shuah Khan (2): media: Media Device Allocator API media: change au0828 to use Media Device Allocator API drivers/media/Makefile | 3 +- drivers/media/media-dev-allocator.c | 120 +++++++++++++++++++++++++++++++++ drivers/media/usb/au0828/au0828-core.c | 12 ++-- drivers/media/usb/au0828/au0828.h | 1 + include/media/media-dev-allocator.h | 85 +++++++++++++++++++++++ 5 files changed, 212 insertions(+), 9 deletions(-) create mode 100644 drivers/media/media-dev-allocator.c create mode 100644 include/media/media-dev-allocator.h -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
