On Tue, 30 Aug 2011, Hans Verkuil wrote:

> On Tuesday, August 30, 2011 19:22:00 Guennadi Liakhovetski wrote:
> > None of the media drivers are compulsory, let users select which drivers
> > they want to build, instead of having to unselect them one by one.
> 
> I disagree with this: while this is fine for SoCs, for a generic kernel I
> think it is better to build it all. Even expert users can have a hard time
> figuring out what chip is in a particular device.

Then could someone, please, explain to me, why I don't find this 
"convenience" in any other kernel driver class? Wireless, ALSA, USB, I2C - 
you name them. Is there something special about media, that I'm missing, 
or are all others just user-unfriendly? Why are distro-kernels, 
allmodconfig, allyesconfig not enough for media and we think it's 
necessary to build everything "just in case?"

Thanks
Guennadi

> 
> Regards,
> 
>       Hans
> 
> > Signed-off-by: Guennadi Liakhovetski <g.liakhovet...@gmx.de>
> > ---
> >  drivers/media/common/tuners/Kconfig |   23 +----------------------
> >  drivers/media/radio/Kconfig         |    1 -
> >  drivers/media/rc/Kconfig            |   16 +---------------
> >  drivers/media/rc/keymaps/Kconfig    |    1 -
> >  drivers/media/video/Kconfig         |    7 ++-----
> >  5 files changed, 4 insertions(+), 44 deletions(-)
> > 
> > diff --git a/drivers/media/common/tuners/Kconfig 
> > b/drivers/media/common/tuners/Kconfig
> > index 996302a..1e53057 100644
> > --- a/drivers/media/common/tuners/Kconfig
> > +++ b/drivers/media/common/tuners/Kconfig
> > @@ -33,7 +33,7 @@ config MEDIA_TUNER
> >     select MEDIA_TUNER_MC44S803 if !MEDIA_TUNER_CUSTOMISE
> >  
> >  config MEDIA_TUNER_CUSTOMISE
> > -   bool "Customize analog and hybrid tuner modules to build"
> > +   bool "Select analog and hybrid tuner modules to build"
> >     depends on MEDIA_TUNER
> >     default y if EXPERT
> >     help
> > @@ -52,7 +52,6 @@ config MEDIA_TUNER_SIMPLE
> >     tristate "Simple tuner support"
> >     depends on VIDEO_MEDIA && I2C
> >     select MEDIA_TUNER_TDA9887
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for various simple tuners.
> >  
> > @@ -61,28 +60,24 @@ config MEDIA_TUNER_TDA8290
> >     depends on VIDEO_MEDIA && I2C
> >     select MEDIA_TUNER_TDA827X
> >     select MEDIA_TUNER_TDA18271
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for Philips TDA8290+8275(a) tuner.
> >  
> >  config MEDIA_TUNER_TDA827X
> >     tristate "Philips TDA827X silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A DVB-T silicon tuner module. Say Y when you want to support this 
> > tuner.
> >  
> >  config MEDIA_TUNER_TDA18271
> >     tristate "NXP TDA18271 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A silicon tuner module. Say Y when you want to support this tuner.
> >  
> >  config MEDIA_TUNER_TDA9887
> >     tristate "TDA 9885/6/7 analog IF demodulator"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for Philips TDA9885/6/7
> >       analog IF demodulator.
> > @@ -91,63 +86,54 @@ config MEDIA_TUNER_TEA5761
> >     tristate "TEA 5761 radio tuner (EXPERIMENTAL)"
> >     depends on VIDEO_MEDIA && I2C
> >     depends on EXPERIMENTAL
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for the Philips TEA5761 radio tuner.
> >  
> >  config MEDIA_TUNER_TEA5767
> >     tristate "TEA 5767 radio tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for the Philips TEA5767 radio tuner.
> >  
> >  config MEDIA_TUNER_MT20XX
> >     tristate "Microtune 2032 / 2050 tuners"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for the MT2032 / MT2050 tuner.
> >  
> >  config MEDIA_TUNER_MT2060
> >     tristate "Microtune MT2060 silicon IF tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon IF tuner MT2060 from Microtune.
> >  
> >  config MEDIA_TUNER_MT2266
> >     tristate "Microtune MT2266 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon baseband tuner MT2266 from Microtune.
> >  
> >  config MEDIA_TUNER_MT2131
> >     tristate "Microtune MT2131 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon baseband tuner MT2131 from Microtune.
> >  
> >  config MEDIA_TUNER_QT1010
> >     tristate "Quantek QT1010 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon tuner QT1010 from Quantek.
> >  
> >  config MEDIA_TUNER_XC2028
> >     tristate "XCeive xc2028/xc3028 tuners"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to include support for the xc2028/xc3028 tuners.
> >  
> >  config MEDIA_TUNER_XC5000
> >     tristate "Xceive XC5000 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon tuner XC5000 from Xceive.
> >       This device is only used inside a SiP called together with a
> > @@ -156,7 +142,6 @@ config MEDIA_TUNER_XC5000
> >  config MEDIA_TUNER_XC4000
> >     tristate "Xceive XC4000 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon tuner XC4000 from Xceive.
> >       This device is only used inside a SiP called together with a
> > @@ -165,42 +150,36 @@ config MEDIA_TUNER_XC4000
> >  config MEDIA_TUNER_MXL5005S
> >     tristate "MaxLinear MSL5005S silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon tuner MXL5005S from MaxLinear.
> >  
> >  config MEDIA_TUNER_MXL5007T
> >     tristate "MaxLinear MxL5007T silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon tuner MxL5007T from MaxLinear.
> >  
> >  config MEDIA_TUNER_MC44S803
> >     tristate "Freescale MC44S803 Low Power CMOS Broadband tuners"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       Say Y here to support the Freescale MC44S803 based tuners
> >  
> >  config MEDIA_TUNER_MAX2165
> >     tristate "Maxim MAX2165 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       A driver for the silicon tuner MAX2165 from Maxim.
> >  
> >  config MEDIA_TUNER_TDA18218
> >     tristate "NXP TDA18218 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       NXP TDA18218 silicon tuner driver.
> >  
> >  config MEDIA_TUNER_TDA18212
> >     tristate "NXP TDA18212 silicon tuner"
> >     depends on VIDEO_MEDIA && I2C
> > -   default m if MEDIA_TUNER_CUSTOMISE
> >     help
> >       NXP TDA18212 silicon tuner driver.
> >  
> > diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
> > index 52798a1..0195335 100644
> > --- a/drivers/media/radio/Kconfig
> > +++ b/drivers/media/radio/Kconfig
> > @@ -5,7 +5,6 @@
> >  menuconfig RADIO_ADAPTERS
> >     bool "Radio Adapters"
> >     depends on VIDEO_V4L2
> > -   default y
> >     ---help---
> >       Say Y here to enable selecting AM/FM radio adapters.
> >  
> > diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
> > index 899f783..2a4f829 100644
> > --- a/drivers/media/rc/Kconfig
> > +++ b/drivers/media/rc/Kconfig
> > @@ -1,7 +1,6 @@
> >  menuconfig RC_CORE
> >     tristate "Remote Controller adapters"
> >     depends on INPUT
> > -   default INPUT
> >     ---help---
> >       Enable support for Remote Controllers on Linux. This is
> >       needed in order to support several video capture adapters.
> > @@ -11,12 +10,9 @@ menuconfig RC_CORE
> >       if you don't need IR, as otherwise, you may not be able to
> >       compile the driver for your adapter.
> >  
> > -if RC_CORE
> > -
> >  config LIRC
> >     tristate
> > -   default y
> > -
> > +   depends on RC_CORE
> >     ---help---
> >        Enable this option to build the Linux Infrared Remote
> >        Control (LIRC) core device interface driver. The LIRC
> > @@ -30,7 +26,6 @@ config IR_NEC_DECODER
> >     tristate "Enable IR raw decoder for the NEC protocol"
> >     depends on RC_CORE
> >     select BITREVERSE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have IR with NEC protocol, and
> > @@ -40,7 +35,6 @@ config IR_RC5_DECODER
> >     tristate "Enable IR raw decoder for the RC-5 protocol"
> >     depends on RC_CORE
> >     select BITREVERSE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have IR with RC-5 protocol, and
> > @@ -50,7 +44,6 @@ config IR_RC6_DECODER
> >     tristate "Enable IR raw decoder for the RC6 protocol"
> >     depends on RC_CORE
> >     select BITREVERSE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have an infrared remote control which
> > @@ -60,7 +53,6 @@ config IR_JVC_DECODER
> >     tristate "Enable IR raw decoder for the JVC protocol"
> >     depends on RC_CORE
> >     select BITREVERSE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have an infrared remote control which
> > @@ -69,7 +61,6 @@ config IR_JVC_DECODER
> >  config IR_SONY_DECODER
> >     tristate "Enable IR raw decoder for the Sony protocol"
> >     depends on RC_CORE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have an infrared remote control which
> > @@ -79,7 +70,6 @@ config IR_RC5_SZ_DECODER
> >     tristate "Enable IR raw decoder for the RC-5 (streamzap) protocol"
> >     depends on RC_CORE
> >     select BITREVERSE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have IR with RC-5 (streamzap) protocol,
> > @@ -91,7 +81,6 @@ config IR_MCE_KBD_DECODER
> >     tristate "Enable IR raw decoder for the MCE keyboard/mouse protocol"
> >     depends on RC_CORE
> >     select BITREVERSE
> > -   default y
> >  
> >     ---help---
> >        Enable this option if you have a Microsoft Remote Keyboard for
> > @@ -102,7 +91,6 @@ config IR_LIRC_CODEC
> >     tristate "Enable IR to LIRC bridge"
> >     depends on RC_CORE
> >     depends on LIRC
> > -   default y
> >  
> >     ---help---
> >        Enable this option to pass raw IR to and from userspace via
> > @@ -236,5 +224,3 @@ config RC_LOOPBACK
> >  
> >        To compile this driver as a module, choose M here: the module will
> >        be called rc_loopback.
> > -
> > -endif #RC_CORE
> > diff --git a/drivers/media/rc/keymaps/Kconfig 
> > b/drivers/media/rc/keymaps/Kconfig
> > index 8e615fd..dbaacf1 100644
> > --- a/drivers/media/rc/keymaps/Kconfig
> > +++ b/drivers/media/rc/keymaps/Kconfig
> > @@ -1,7 +1,6 @@
> >  config RC_MAP
> >     tristate "Compile Remote Controller keymap modules"
> >     depends on RC_CORE
> > -   default y
> >  
> >     ---help---
> >        This option enables the compilation of lots of Remote
> > diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
> > index f574dc0..d26443d 100644
> > --- a/drivers/media/video/Kconfig
> > +++ b/drivers/media/video/Kconfig
> > @@ -73,7 +73,6 @@ config VIDEOBUF2_DMA_SG
> >  menuconfig VIDEO_CAPTURE_DRIVERS
> >     bool "Video capture adapters"
> >     depends on VIDEO_V4L2
> > -   default y
> >     ---help---
> >       Say Y here to enable selecting the video adapters for
> >       webcams, analog TV, and hybrid analog/digital TV.
> > @@ -113,8 +112,8 @@ config VIDEO_HELPER_CHIPS_AUTO
> >  
> >  config VIDEO_IR_I2C
> >     tristate "I2C module for IR" if !VIDEO_HELPER_CHIPS_AUTO
> > -   depends on I2C && RC_CORE
> > -   default y
> > +   depends on I2C
> > +   select RC_CORE
> >     ---help---
> >       Most boards have an IR chip directly connected via GPIO. However,
> >       some video boards have the IR connected via I2C bus.
> > @@ -556,7 +555,6 @@ config VIDEO_VIU
> >     tristate "Freescale VIU Video Driver"
> >     depends on VIDEO_V4L2 && PPC_MPC512x
> >     select VIDEOBUF_DMA_CONTIG
> > -   default y
> >     ---help---
> >       Support for Freescale VIU video driver. This device captures
> >       video data, or overlays video on DIU frame buffer.
> > @@ -986,7 +984,6 @@ source "drivers/media/video/s5p-tv/Kconfig"
> >  menuconfig V4L_USB_DRIVERS
> >     bool "V4L USB devices"
> >     depends on USB
> > -   default y
> >  
> >  if V4L_USB_DRIVERS && USB
> >  
> > 
> 

---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/
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