提交 55aa32fe 编写于 作者: M Mauro Carvalho Chehab

[media] cx88.rst: Update the documentation

This doc is outdated, and contains information that it is not
true anymore. Update it to reflect the changes that this
driver suffered since I started working on it.

While here, also update Gerd's name.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>
上级 c009e681
The cx88 driver
===============
.. note::
This documentation is outdated.
cx8800 release notes
--------------------
Author: Gerd Hoffmann
This is a v4l2 device driver for the cx2388x chip.
current status
Current status
--------------
video
- Basically works.
- For now, only capture and read(). Overlay isn't supported.
- Works.
- 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.
- Works. The TV standard detection is made by the driver, as the
hardware has bugs to auto-detect.
- 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.
- Works.
how to add support for new cards
How to add support for new cards
--------------------------------
The driver needs some config info for the TV cards. This stuff is in
......@@ -53,24 +40,19 @@ like this one:
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 information to add the card:
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. We need at least the
following information to add the card:
* the PCI Subsystem ID ("0070:3400" from the line above,
- 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
- 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]
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