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alistair23-linux/drivers/staging/media/Kconfig

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menuconfig STAGING_MEDIA
bool "Media staging drivers"
default n
---help---
This option allows you to select a number of media drivers that
don't have the "normal" Linux kernel quality level.
Most of them don't follow properly the V4L, DVB and/or RC API's,
so, they won't likely work fine with the existing applications.
That also means that, once fixed, their API's will change to match
the existing ones.
If you wish to work on these drivers, to help improve them, or
to report problems you have with them, please use the
linux-media@vger.kernel.org mailing list.
If in doubt, say N here.
[media] staging: add MEDIA_SUPPORT dependency staging media drivers tend to have a build time dependency on the media support. In particular, the newly added pulse8 cec driver can only be a loadable module if MEDIA_SUPPORT=m, but its build dependency is on a 'bool' symbol (MEDIA_CEC), so a randconfig build can fail with pulse8_cec built-in: drivers/staging/built-in.o: In function `pulse8_disconnect': dgnc_utils.c:(.text+0x114): undefined reference to `cec_unregister_adapter' drivers/staging/built-in.o: In function `pulse8_irq_work_handler': dgnc_utils.c:(.text+0x1bc): undefined reference to `cec_transmit_done' dgnc_utils.c:(.text+0x1d8): undefined reference to `cec_received_msg' dgnc_utils.c:(.text+0x1f4): undefined reference to `cec_transmit_done' dgnc_utils.c:(.text+0x218): undefined reference to `cec_transmit_done' dgnc_utils.c:(.text+0x23c): undefined reference to `cec_transmit_done' drivers/staging/built-in.o: In function `pulse8_connect': dgnc_utils.c:(.text+0x844): undefined reference to `cec_allocate_adapter' dgnc_utils.c:(.text+0x8a4): undefined reference to `cec_delete_adapter' dgnc_utils.c:(.text+0xa10): undefined reference to `cec_register_adapter' Originally, MEDIA_CEC itself was a tristate symbol, which would have prevented this, but since 5bb2399a4fe4 ("[media] cec: fix Kconfig dependency problems"), it doesn't work like that any more. This encloses all of the staging media drivers in a CONFIG_MEDIA_SUPPORT dependency in Kconfig, which solves the problem by enforcing that none of the drivers can be built-in if the media core is a module. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-19 02:10:12 -06:00
if STAGING_MEDIA && MEDIA_SUPPORT
# Please keep them in alphabetic order
source "drivers/staging/media/bcm2048/Kconfig"
source "drivers/staging/media/cec/Kconfig"
source "drivers/staging/media/cxd2099/Kconfig"
source "drivers/staging/media/davinci_vpfe/Kconfig"
source "drivers/staging/media/omap4iss/Kconfig"
source "drivers/staging/media/pulse8-cec/Kconfig"
source "drivers/staging/media/s5p-cec/Kconfig"
# Keep LIRC at the end, as it has sub-menus
source "drivers/staging/media/lirc/Kconfig"
source "drivers/staging/media/st-cec/Kconfig"
endif