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diff --git a/Documentation/media/v4l-drivers/saa7134.rst b/Documentation/media/v4l-drivers/saa7134.rst new file mode 100644 index 000000000000..b911f0871874 --- /dev/null +++ b/Documentation/media/v4l-drivers/saa7134.rst @@ -0,0 +1,82 @@ + + +What is it? +=========== + +This is a v4l2/oss device driver for saa7130/33/34/35 based capture / TV +boards. See http://www.semiconductors.philips.com/pip/saa7134hl for a +description. + + +Status +====== + +Almost everything is working. video, sound, tuner, radio, mpeg ts, ... + +As with bttv, card-specific tweaks are needed. Check CARDLIST for a +list of known TV cards and saa7134-cards.c for the drivers card +configuration info. + + +Build +===== + +Pick up videodev + v4l2 patches from http://bytesex.org/patches/. +Configure, build, install + boot the new kernel. You'll need at least +these config options: + + CONFIG_I2C=m + CONFIG_VIDEO_DEV=m + +Type "make" to build the driver now. "make install" installs the +driver. "modprobe saa7134" should load it. Depending on the card you +might have to pass card=<nr> as insmod option, check CARDLIST for +valid choices. + + +Changes / Fixes +=============== + +Please mail me unified diffs ("diff -u") with your changes, and don't +forget to tell me what it changes / which problem it fixes / whatever +it is good for ... + + +Known Problems +============== + +* The tuner for the flyvideos isn't detected automatically and the + default might not work for you depending on which version you have. + There is a tuner= insmod option to override the driver's default. + +Card Variations: +================ + +Cards can use either of these two crystals (xtal): + - 32.11 MHz -> .audio_clock=0x187de7 + - 24.576MHz -> .audio_clock=0x200000 +(xtal * .audio_clock = 51539600) + +Some details about 30/34/35: + + - saa7130 - low-price chip, doesn't have mute, that is why all those + cards should have .mute field defined in their tuner structure. + + - saa7134 - usual chip + + - saa7133/35 - saa7135 is probably a marketing decision, since all those + chips identifies itself as 33 on pci. + +Credits +======= + +andrew.stevens@philips.com + werner.leeb@philips.com for providing +saa7134 hardware specs and sample board. + + +Have fun, + + Gerd + +-- +Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |