1*4882a593Smuzhiyun.. SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunThe cx88 driver 4*4882a593Smuzhiyun=============== 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunAuthor: Gerd Hoffmann 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunThis is a v4l2 device driver for the cx2388x chip. 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun 11*4882a593SmuzhiyunCurrent status 12*4882a593Smuzhiyun-------------- 13*4882a593Smuzhiyun 14*4882a593Smuzhiyunvideo 15*4882a593Smuzhiyun - Works. 16*4882a593Smuzhiyun - Overlay isn't supported. 17*4882a593Smuzhiyun 18*4882a593Smuzhiyunaudio 19*4882a593Smuzhiyun - Works. The TV standard detection is made by the driver, as the 20*4882a593Smuzhiyun hardware has bugs to auto-detect. 21*4882a593Smuzhiyun - audio data dma (i.e. recording without loopback cable to the 22*4882a593Smuzhiyun sound card) is supported via cx88-alsa. 23*4882a593Smuzhiyun 24*4882a593Smuzhiyunvbi 25*4882a593Smuzhiyun - Works. 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun 28*4882a593SmuzhiyunHow to add support for new cards 29*4882a593Smuzhiyun-------------------------------- 30*4882a593Smuzhiyun 31*4882a593SmuzhiyunThe driver needs some config info for the TV cards. This stuff is in 32*4882a593Smuzhiyuncx88-cards.c. If the driver doesn't work well you likely need a new 33*4882a593Smuzhiyunentry for your card in that file. Check the kernel log (using dmesg) 34*4882a593Smuzhiyunto see whenever the driver knows your card or not. There is a line 35*4882a593Smuzhiyunlike this one: 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun.. code-block:: none 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun cx8800[0]: subsystem: 0070:3400, board: Hauppauge WinTV \ 40*4882a593Smuzhiyun 34xxx models [card=1,autodetected] 41*4882a593Smuzhiyun 42*4882a593SmuzhiyunIf your card is listed as "board: UNKNOWN/GENERIC" it is unknown to 43*4882a593Smuzhiyunthe driver. What to do then? 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun1) Try upgrading to the latest snapshot, maybe it has been added 46*4882a593Smuzhiyun meanwhile. 47*4882a593Smuzhiyun2) You can try to create a new entry yourself, have a look at 48*4882a593Smuzhiyun cx88-cards.c. If that worked, mail me your changes as unified 49*4882a593Smuzhiyun diff ("diff -u"). 50*4882a593Smuzhiyun3) Or you can mail me the config information. We need at least the 51*4882a593Smuzhiyun following information to add the card: 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun - the PCI Subsystem ID ("0070:3400" from the line above, 54*4882a593Smuzhiyun "lspci -v" output is fine too). 55*4882a593Smuzhiyun - the tuner type used by the card. You can try to find one by 56*4882a593Smuzhiyun trial-and-error using the tuner=<n> insmod option. If you 57*4882a593Smuzhiyun know which one the card has you can also have a look at the 58*4882a593Smuzhiyun list in CARDLIST.tuner 59