| |
| Release notes for bttv |
| ====================== |
| |
| You'll need at least these config options for bttv: |
| CONFIG_I2C=m |
| CONFIG_I2C_ALGOBIT=m |
| CONFIG_VIDEO_DEV=m |
| |
| The latest bttv version is available from http://bytesex.org/bttv/ |
| |
| |
| Make bttv work with your card |
| ----------------------------- |
| |
| Just try "modprobe bttv" and see if that works. |
| |
| If it doesn't bttv likely could not autodetect your card and needs some |
| insmod options. The most important insmod option for bttv is "card=n" |
| to select the correct card type. If you get video but no sound you've |
| very likely specified the wrong (or no) card type. A list of supported |
| cards is in CARDLIST.bttv |
| |
| If bttv takes very long to load (happens sometimes with the cheap |
| cards which have no tuner), try adding this to your modules.conf: |
| options i2c-algo-bit bit_test=1 |
| |
| For the WinTV/PVR you need one firmware file from the driver CD: |
| hcwamc.rbf. The file is in the pvr45xxx.exe archive (self-extracting |
| zip file, unzip can unpack it). Put it into the /etc/pvr directory or |
| use the firm_altera=<path> insmod option to point the driver to the |
| location of the file. |
| |
| If your card isn't listed in CARDLIST.bttv or if you have trouble making |
| audio work, you should read the Sound-FAQ. |
| |
| |
| Autodetecting cards |
| ------------------- |
| |
| bttv uses the PCI Subsystem ID to autodetect the card type. lspci lists |
| the Subsystem ID in the second line, looks like this: |
| |
| 00:0a.0 Multimedia video controller: Brooktree Corporation Bt878 (rev 02) |
| Subsystem: Hauppauge computer works Inc. WinTV/GO |
| Flags: bus master, medium devsel, latency 32, IRQ 5 |
| Memory at e2000000 (32-bit, prefetchable) [size=4K] |
| |
| only bt878-based cards can have a subsystem ID (which does not mean |
| that every card really has one). bt848 cards can't have a Subsystem |
| ID and therefore can't be autodetected. There is a list with the ID's |
| in bttv-cards.c (in case you are intrested or want to mail patches |
| with updates). |
| |
| |
| Still doesn't work? |
| ------------------- |
| |
| I do NOT have a lab with 30+ different grabber boards and a |
| PAL/NTSC/SECAM test signal generator at home, so I often can't |
| reproduce your problems. This makes debugging very difficult for me. |
| If you have some knowledge and spare time, please try to fix this |
| yourself (patches very welcome of course...) You know: The linux |
| slogan is "Do it yourself". |
| |
| There is a mailing list: linux-media@vger.kernel.org |
| http://vger.kernel.org/vger-lists.html#linux-media |
| |
| If you have trouble with some specific TV card, try to ask there |
| instead of mailing me directly. The chance that someone with the |
| same card listens there is much higher... |
| |
| For problems with sound: There are a lot of different systems used |
| for TV sound all over the world. And there are also different chips |
| which decode the audio signal. Reports about sound problems ("stereo |
| does'nt work") are pretty useless unless you include some details |
| about your hardware and the TV sound scheme used in your country (or |
| at least the country you are living in). |
| |
| |
| Finally: If you mail some patches for bttv around the world (to |
| linux-kernel/Alan/Linus/...), please Cc: me. |
| |
| |
| Have fun with bttv, |
| |
| Gerd |
| |
| -- |
| Gerd Knorr <kraxel@bytesex.org> |
