A number of remote control drivers require the bitreverse
helper, and run into a link error when it is disabled:
arm-linux-gnueabi-ld: drivers/media/rc/img-ir/img-ir-nec.o: in function `img_ir_nec_scancode':
img-ir-nec.c:(.text+0x10c): undefined reference to `byte_rev_table'
arm-linux-gnueabi-ld: drivers/media/rc/img-ir/img-ir-nec.o: in function `img_ir_nec_filter':
img-ir-nec.c:(.text+0x2dc): undefined reference to `byte_rev_table'
arm-linux-gnueabi-ld: drivers/media/usb/cx231xx/cx231xx-input.o: in function `get_key_isdbt':
cx231xx-input.c:(.text+0x38c): undefined reference to `byte_rev_table'
arm-linux-gnueabi-ld: drivers/media/usb/em28xx/em28xx-input.o: in function `em28xx_get_key_em_haup':
em28xx-input.c:(.text+0x1704): undefined reference to `byte_rev_table'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
config IR_SANYO_DECODER
tristate "Enable IR raw decoder for the Sanyo protocol"
depends on RC_CORE
+ select BITREVERSE
help
Enable this option if you have an infrared remote control which
config IR_SHARP_DECODER
tristate "Enable IR raw decoder for the Sharp protocol"
depends on RC_CORE
+ select BITREVERSE
help
Enable this option if you have an infrared remote control which
config IR_IMG_NEC
bool "NEC protocol support"
depends on IR_IMG_HW
+ select BITREVERSE
help
Say Y here to enable support for the NEC, extended NEC, and 32-bit
NEC protocols in the ImgTec infrared decoder block.
bool "Conexant cx231xx Remote Controller additional support"
depends on RC_CORE=y || RC_CORE=VIDEO_CX231XX
depends on VIDEO_CX231XX
+ select BITREVERSE
default y
help
cx231xx hardware has a builtin RX/TX support. However, a few
depends on VIDEO_EM28XX
depends on !(RC_CORE=m && VIDEO_EM28XX=y)
default VIDEO_EM28XX
+ select BITREVERSE
help
Enables Remote Controller support on em28xx driver.