| cx8800 release notes |
| ==================== |
| |
| This is a v4l2 device driver for the cx2388x chip. |
| |
| |
| current status |
| ============== |
| |
| video |
| - Basically works. |
| - For now, only capture and read(). Overlay isn't supported. |
| |
| audio |
| - The chip specs for the on-chip TV sound decoder are next |
| to useless :-/ |
| - Neverless the builtin TV sound decoder starts working now, |
| at least for some standards. |
| FOR ANY REPORTS ON THIS PLEASE MENTION THE TV NORM YOU ARE |
| USING. |
| - 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) is supported via cx88-alsa. |
| |
| vbi |
| - Code present. Works for NTSC closed caption. PAL and other |
| TV norms may or may not work. |
| |
| |
| 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] |