linux/drivers/media/Makefile
Shuah Khan 6e1d824e7a media: Media Device Allocator API
Media Device Allocator API to allows multiple drivers share a media device.
This API solves a very common use-case for media devices where one physical
device (an USB stick) provides both audio and video. When such media device
exposes a standard USB Audio class, a proprietary Video class, two or more
independent drivers will share a single physical USB bridge. In such cases,
it is necessary to coordinate access to the shared resource.

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.

Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-22 11:18:26 -04:00

44 lines
929 B
Makefile

# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the kernel multimedia device drivers.
#
media-objs := media-device.o media-devnode.o media-entity.o \
media-request.o
ifeq ($(CONFIG_MEDIA_CONTROLLER),y)
ifeq ($(CONFIG_USB),y)
media-objs += media-dev-allocator.o
endif
endif
#
# I2C drivers should come before other drivers, otherwise they'll fail
# when compiled as builtin drivers
#
obj-y += i2c/ tuners/
obj-$(CONFIG_DVB_CORE) += dvb-frontends/
#
# Now, let's link-in the media core
#
ifeq ($(CONFIG_MEDIA_CONTROLLER),y)
obj-$(CONFIG_MEDIA_SUPPORT) += media.o
endif
obj-$(CONFIG_VIDEO_DEV) += v4l2-core/
obj-$(CONFIG_DVB_CORE) += dvb-core/
# There are both core and drivers at RC subtree - merge before drivers
obj-y += rc/
obj-$(CONFIG_CEC_CORE) += cec/
#
# Finally, merge the drivers that require the core
#
obj-y += common/ platform/ pci/ usb/ mmc/ firewire/ spi/
obj-$(CONFIG_VIDEO_DEV) += radio/