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authorTobias Lorenz <tobias.lorenz@gmx.net>2008-10-28 08:48:27 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-11-11 08:11:24 -0200
commit6aadf82eb830cf2622f8803fd7f0414299e246d3 (patch)
tree63db1ce0a95328bab230326aa252c57ee98b0356 /drivers/media
parentf3a3e881b81ae33b786759c7042de974c1e0bbf7 (diff)
V4L/DVB (9482): Documentation, especially regarding audio and informational links
This patch adds a recommendation to select SND_USB_AUDIO for listing and adds a documentation file for si470x. Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/radio/Kconfig14
-rw-r--r--drivers/media/radio/radio-si470x.c13
2 files changed, 14 insertions, 13 deletions
diff --git a/drivers/media/radio/Kconfig b/drivers/media/radio/Kconfig
index 04cd7c04bdd..5189c4eb439 100644
--- a/drivers/media/radio/Kconfig
+++ b/drivers/media/radio/Kconfig
@@ -355,6 +355,20 @@ config USB_SI470X
tristate "Silicon Labs Si470x FM Radio Receiver support"
depends on USB && VIDEO_V4L2
---help---
+ This is a driver for USB devices with the Silicon Labs SI470x
+ chip. Currently these devices are known to work:
+ - 10c4:818a: Silicon Labs USB FM Radio Reference Design
+ - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music)
+ - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
+
+ Sound is provided by the ALSA USB Audio/MIDI driver. Therefore
+ if you don't want to use the device solely for RDS receiving,
+ it is recommended to also select SND_USB_AUDIO.
+
+ Please have a look at the documentation, especially on how
+ to redirect the audio stream from the radio to your sound device:
+ Documentation/video4linux/si470x.txt
+
Say Y here if you want to connect this type of radio to your
computer's USB port.
diff --git a/drivers/media/radio/radio-si470x.c b/drivers/media/radio/radio-si470x.c
index a20583c13b6..3e1830293de 100644
--- a/drivers/media/radio/radio-si470x.c
+++ b/drivers/media/radio/radio-si470x.c
@@ -25,19 +25,6 @@
/*
- * User Notes:
- * - USB Audio is provided by the alsa snd_usb_audio module.
- * For listing you have to redirect the sound, for example using:
- * arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B -
- * - regarding module parameters in /sys/module/radio_si470x/parameters:
- * the contents of read-only files (0444) are not updated, even if
- * space, band and de are changed using private video controls
- * - increase tune_timeout, if you often get -EIO errors
- * - hw_freq_seek returns -EAGAIN, when timed out or band limit is reached
- */
-
-
-/*
* History:
* 2008-01-12 Tobias Lorenz <tobias.lorenz@gmx.net>
* Version 1.0.0