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author | Gerd Knorr <devnull@localhost> | 2004-02-22 01:59:34 +0000 |
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committer | Gerd Knorr <devnull@localhost> | 2004-02-22 01:59:34 +0000 |
commit | 229b130306c830b9f1c410ccd6060b65aa68dcec (patch) | |
tree | 0ad687a6c45ad1481a208419b017f2c7cf6c520c /linux/Documentation/video4linux/README.cx88 | |
parent | 0f99a89ea0a04d80bd283fdfd2c8141a763e2de3 (diff) | |
download | mediapointer-dvb-s2-229b130306c830b9f1c410ccd6060b65aa68dcec.tar.gz mediapointer-dvb-s2-229b130306c830b9f1c410ccd6060b65aa68dcec.tar.bz2 |
Initial revision
Diffstat (limited to 'linux/Documentation/video4linux/README.cx88')
-rw-r--r-- | linux/Documentation/video4linux/README.cx88 | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/linux/Documentation/video4linux/README.cx88 b/linux/Documentation/video4linux/README.cx88 new file mode 100644 index 000000000..f338ce694 --- /dev/null +++ b/linux/Documentation/video4linux/README.cx88 @@ -0,0 +1,69 @@ + +cx8800 release notes +==================== + +This is a v4l2 device driver for the cx2388x chip. + + +current status +============== + +video + - Basically works. + - Some minor image quality glitches. + - Eed and blue are swapped sometimes for not-yet known + reasons (seems to depend on the image size, try to resize + your tv app window as workaround ...). + - For now only capture, overlay support isn't completed yet. + +audio + - The chip specs for the on-chip TV sound decoder are next + to useless :-/ + - Neverless the builtin TV sound decoder starts working now. + - Most tuner chips do provide mono sound, which may or may not + be useable depending on the board design. With the Hauppauge + cards it works, so there is mono sound available as fallback. + - audio data dma (i.e. recording without loopback cable to the + sound card), but there is no code yet ... + +vbi + - some code present. Doesn't crash any more, but also doesn't + work yet ... + + +how to add support for new cards +================================ + +The driver needs some config info for the TV cards. This stuff is in +cx88-cards.c. If the driver doesn't work well you likely need a new +entry for your card in that file. Check the kernel log (using dmesg) +to see whenever the driver knows your card or not. There is a line +like this one: + + cx8800[0]: subsystem: 0070:3400, board: Hauppauge WinTV \ + 34xxx models [card=1,autodetected] + +If your card is listed as "board: UNKNOWN/GENERIC" it is unknown to +the driver. What to do then? + + (1) Try upgrading to the latest snapshot, maybe it has been added + meanwhile. + (2) You can try to create a new entry yourself, have a look at + cx88-cards.c. If that worked, mail me your changes as unified + diff ("diff -u"). + (3) Or you can mail me the config information. I need at least the + following informations to add the card: + + * the PCI Subsystem ID ("0070:3400" from the line above, + "lspci -v" output is fine too). + * the tuner type used by the card. You can try to find one by + trial-and-error using the tuner=<n> insmod option. If you + know which one the card has you can also have a look at the + list in CARDLIST.tuner + +Have fun, + + Gerd + +-- +Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |