projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | cx8800 release notes |
| 2 | ==================== | |
| 3 | ||
| 4 | This is a v4l2 device driver for the cx2388x chip. | |
| 5 | ||
| 6 | ||
| 7 | current status | |
| 8 | ============== | |
| 9 | ||
| 10 | video | |
| 11 | - Basically works. | |
| 2b1b945f | 12 | - For now, only capture and read(). Overlay isn't supported. |
| 1da177e4 LT |
13 | |
| 14 | audio | |
| 15 | - The chip specs for the on-chip TV sound decoder are next | |
| 16 | to useless :-/ | |
| 17 | - Neverless the builtin TV sound decoder starts working now, | |
| 2b1b945f | 18 | at least for some standards. |
| 4ac97914 MCC |
19 | FOR ANY REPORTS ON THIS PLEASE MENTION THE TV NORM YOU ARE |
| 20 | USING. | |
| 1da177e4 LT |
21 | - Most tuner chips do provide mono sound, which may or may not |
| 22 | be useable depending on the board design. With the Hauppauge | |
| 23 | cards it works, so there is mono sound available as fallback. | |
| 24 | - audio data dma (i.e. recording without loopback cable to the | |
| 2b1b945f | 25 | sound card) is supported via cx88-alsa. |
| 1da177e4 LT |
26 | |
| 27 | vbi | |
| 0d0f1e0a RD |
28 | - Code present. Works for NTSC closed caption. PAL and other |
| 29 | TV norms may or may not work. | |
| 1da177e4 LT |
30 | |
| 31 | ||
| 32 | how to add support for new cards | |
| 33 | ================================ | |
| 34 | ||
| 35 | The driver needs some config info for the TV cards. This stuff is in | |
| 36 | cx88-cards.c. If the driver doesn't work well you likely need a new | |
| 37 | entry for your card in that file. Check the kernel log (using dmesg) | |
| 38 | to see whenever the driver knows your card or not. There is a line | |
| 39 | like this one: | |
| 40 | ||
| 41 | cx8800[0]: subsystem: 0070:3400, board: Hauppauge WinTV \ | |
| 42 | 34xxx models [card=1,autodetected] | |
| 43 | ||
| 44 | If your card is listed as "board: UNKNOWN/GENERIC" it is unknown to | |
| 45 | the driver. What to do then? | |
| 46 | ||
| 47 | (1) Try upgrading to the latest snapshot, maybe it has been added | |
| 48 | meanwhile. | |
| 49 | (2) You can try to create a new entry yourself, have a look at | |
| 50 | cx88-cards.c. If that worked, mail me your changes as unified | |
| 51 | diff ("diff -u"). | |
| 52 | (3) Or you can mail me the config information. I need at least the | |
| 53 | following informations to add the card: | |
| 54 | ||
| 55 | * the PCI Subsystem ID ("0070:3400" from the line above, | |
| 56 | "lspci -v" output is fine too). | |
| 57 | * the tuner type used by the card. You can try to find one by | |
| 58 | trial-and-error using the tuner=<n> insmod option. If you | |
| 59 | know which one the card has you can also have a look at the | |
| 60 | list in CARDLIST.tuner | |
| 61 | ||
| 62 | Have fun, | |
| 63 | ||
| 64 | Gerd | |
| 65 | ||
| 994914ea | 66 | -- |
| 1da177e4 | 67 | Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |