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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-17 17:44:45 -0300
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2016-07-17 22:49:57 -0300
commit55aa32feb03fadc8779fc14e94f73f0b65c4d2f2 (patch)
tree33c7476055ac14b4b338e41aa9e5d1dcf3b549e2
parentc009e6819e60d50f2f84d202927eaa66f00e62a1 (diff)
[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This doc is outdated, and contains information that it is not true anymore.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: Mauro Carvalho Chehab <mchehab@s-opensource.com>
-rw-r--r--Documentation/media/v4l-drivers/cx88.rst52
1 files changed, 17 insertions, 35 deletions
diff --git a/Documentation/media/v4l-drivers/cx88.rst b/Documentation/media/v4l-drivers/cx88.rst
index f4e69306f64d..ac83292776da 100644
--- a/Documentation/media/v4l-drivers/cx88.rst
+++ b/Documentation/media/v4l-drivers/cx88.rst
@@ -1,42 +1,29 @@
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- This documentation is outdated.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]