Based on kernel version 2.6.26. Page generated on 2008-07-16 21:13 EST.
1 2 cx8800 release notes 3 ==================== 4 5 This is a v4l2 device driver for the cx2388x chip. 6 7 8 current status 9 ============== 10 11 video 12 - Basically works. 13 - Some minor image quality glitches. 14 - For now only capture, overlay support isn't completed yet. 15 16 audio 17 - The chip specs for the on-chip TV sound decoder are next 18 to useless :-/ 19 - Neverless the builtin TV sound decoder starts working now, 20 at least for PAL-BG. Other TV norms need other code ... 21 FOR ANY REPORTS ON THIS PLEASE MENTION THE TV NORM YOU ARE 22 USING. 23 - Most tuner chips do provide mono sound, which may or may not 24 be useable depending on the board design. With the Hauppauge 25 cards it works, so there is mono sound available as fallback. 26 - audio data dma (i.e. recording without loopback cable to the 27 sound card) should be possible, but there is no code yet ... 28 29 vbi 30 - some code present. Doesn't crash any more, but also doesn't 31 work yet ... 32 33 34 how to add support for new cards 35 ================================ 36 37 The driver needs some config info for the TV cards. This stuff is in 38 cx88-cards.c. If the driver doesn't work well you likely need a new 39 entry for your card in that file. Check the kernel log (using dmesg) 40 to see whenever the driver knows your card or not. There is a line 41 like this one: 42 43 cx8800[0]: subsystem: 0070:3400, board: Hauppauge WinTV \ 44 34xxx models [card=1,autodetected] 45 46 If your card is listed as "board: UNKNOWN/GENERIC" it is unknown to 47 the driver. What to do then? 48 49 (1) Try upgrading to the latest snapshot, maybe it has been added 50 meanwhile. 51 (2) You can try to create a new entry yourself, have a look at 52 cx88-cards.c. If that worked, mail me your changes as unified 53 diff ("diff -u"). 54 (3) Or you can mail me the config information. I need at least the 55 following informations to add the card: 56 57 * the PCI Subsystem ID ("0070:3400" from the line above, 58 "lspci -v" output is fine too). 59 * the tuner type used by the card. You can try to find one by 60 trial-and-error using the tuner=<n> insmod option. If you 61 know which one the card has you can also have a look at the 62 list in CARDLIST.tuner 63 64 Have fun, 65 66 Gerd 67 68 -- 69 Gerd Knorr <kraxel[AT]bytesex[DOT]org> [SuSE Labs]