0edf2e5e2b
All of the hard problems for BKL removal appear to be solved in the v4l-dvb/master tree. This removes the BKL from the various open functions that do not need it, or only use it to protect an open count. The zoran driver is nontrivial in this regard, so I introduce a new mutex that locks both the open/release and the ioctl functions. Someone with access to the hardware can probably improve that by using the existing lock in all cases. Finally, all drivers that still use the locked version of the ioctl function now get called under a new mutex instead of the BKL. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
147 lines
3.5 KiB
Plaintext
147 lines
3.5 KiB
Plaintext
#
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# Multimedia device configuration
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#
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menuconfig MEDIA_SUPPORT
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tristate "Multimedia support"
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depends on HAS_IOMEM
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help
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If you want to use Video for Linux, DVB for Linux, or DAB adapters,
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enable this option and other options below.
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if MEDIA_SUPPORT
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comment "Multimedia core support"
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#
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# V4L core and enabled API's
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#
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config VIDEO_DEV
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tristate "Video For Linux"
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---help---
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V4L core support for video capture and overlay devices, webcams and
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AM/FM radio cards.
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This kernel includes support for the new Video for Linux Two API,
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(V4L2).
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Additional info and docs are available on the web at
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<http://linuxtv.org>
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Documentation for V4L2 is also available on the web at
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<http://bytesex.org/v4l/>.
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To compile this driver as a module, choose M here: the
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module will be called videodev.
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config VIDEO_V4L2_COMMON
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tristate
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depends on (I2C || I2C=n) && VIDEO_DEV
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default (I2C || I2C=n) && VIDEO_DEV
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config VIDEO_ALLOW_V4L1
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bool "Enable Video For Linux API 1 (DEPRECATED)"
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depends on VIDEO_DEV && VIDEO_V4L2_COMMON
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default VIDEO_DEV && VIDEO_V4L2_COMMON
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---help---
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Enables drivers based on the legacy V4L1 API.
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This api were developed to be used at Kernel 2.2 and 2.4, but
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lacks support for several video standards. There are several
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drivers at kernel that still depends on it.
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If you are unsure as to whether this is required, answer Y.
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config VIDEO_V4L1_COMPAT
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bool "Enable Video For Linux API 1 compatible Layer" if !VIDEO_ALLOW_V4L1
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depends on VIDEO_DEV
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default y
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---help---
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Enables a compatibility API used by most V4L2 devices to allow
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its usage with legacy applications that supports only V4L1 api.
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Documentation for the original API is included in the file
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<Documentation/video4linux/API.html>.
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User tools for this are available from
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<ftp://ftp.uk.linux.org/pub/linux/video4linux/>.
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If you are unsure as to whether this is required, answer Y.
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#
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# DVB Core
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#
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config DVB_CORE
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tristate "DVB for Linux"
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depends on NET && INET
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select CRC32
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help
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DVB core utility functions for device handling, software fallbacks etc.
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Enable this if you own a DVB/ATSC adapter and want to use it or if
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you compile Linux for a digital SetTopBox.
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Say Y when you have a DVB or an ATSC card and want to use it.
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API specs and user tools are available from <http://www.linuxtv.org/>.
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Please report problems regarding this support to the LinuxDVB
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mailing list.
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If unsure say N.
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config VIDEO_MEDIA
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tristate
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default (DVB_CORE && (VIDEO_DEV = n)) || (VIDEO_DEV && (DVB_CORE = n)) || (DVB_CORE && VIDEO_DEV)
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comment "Multimedia drivers"
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source "drivers/media/common/Kconfig"
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source "drivers/media/IR/Kconfig"
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#
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# Tuner drivers for DVB and V4L
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#
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source "drivers/media/common/tuners/Kconfig"
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#
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# Video/Radio/Hybrid adapters
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#
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source "drivers/media/video/Kconfig"
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source "drivers/media/radio/Kconfig"
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#
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# DVB adapters
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#
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source "drivers/media/dvb/Kconfig"
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config DAB
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boolean "DAB adapters"
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---help---
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Allow selecting support for Digital Audio Broadcasting (DAB)
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Receiver adapters.
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if DAB
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config USB_DABUSB
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tristate "DABUSB driver"
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depends on USB
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---help---
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A Digital Audio Broadcasting (DAB) Receiver for USB and Linux
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brought to you by the DAB-Team
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<http://wwwbode.cs.tum.edu/Par/arch/dab/>. This driver can be taken
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as an example for URB-based bulk, control, and isochronous
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transactions. URB's are explained in
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<Documentation/usb/URB.txt>.
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To compile this driver as a module, choose M here: the
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module will be called dabusb.
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endif # DAB
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endif # MEDIA_SUPPORT
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