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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. |
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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. | |
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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. |
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26 | |
27 | vbi | |
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28 | - Code present. Works for NTSC closed caption. PAL and other |
29 | TV norms may or may not work. | |
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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] |