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diff --git a/Documentation/video4linux/si470x.txt b/Documentation/video4linux/si470x.txt
index 49679e6aaa76..3a7823e01b4d 100644
--- a/Documentation/video4linux/si470x.txt
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@@ -1,6 +1,6 @@
1Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers 1Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers
2 2
3Copyright (c) 2008 Tobias Lorenz <tobias.lorenz@gmx.net> 3Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
4 4
5 5
6Information from Silicon Labs 6Information from Silicon Labs
@@ -41,7 +41,7 @@ chips are known to work:
41- 10c4:818a: Silicon Labs USB FM Radio Reference Design 41- 10c4:818a: Silicon Labs USB FM Radio Reference Design
42- 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF) 42- 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
43- 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700) 43- 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
44- 10c5:819a: DealExtreme USB Radio 44- 10c5:819a: Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear)
45 45
46 46
47Software 47Software
@@ -52,6 +52,7 @@ Testing is usually done with most application under Debian/testing:
52- gradio - GTK FM radio tuner 52- gradio - GTK FM radio tuner
53- kradio - Comfortable Radio Application for KDE 53- kradio - Comfortable Radio Application for KDE
54- radio - ncurses-based radio application 54- radio - ncurses-based radio application
55- mplayer - The Ultimate Movie Player For Linux
55 56
56There is also a library libv4l, which can be used. It's going to have a function 57There is also a library libv4l, which can be used. It's going to have a function
57for frequency seeking, either by using hardware functionality as in radio-si470x 58for frequency seeking, either by using hardware functionality as in radio-si470x
@@ -69,7 +70,7 @@ Audio Listing
69USB Audio is provided by the ALSA snd_usb_audio module. It is recommended to 70USB Audio is provided by the ALSA snd_usb_audio module. It is recommended to
70also select SND_USB_AUDIO, as this is required to get sound from the radio. For 71also select SND_USB_AUDIO, as this is required to get sound from the radio. For
71listing you have to redirect the sound, for example using one of the following 72listing you have to redirect the sound, for example using one of the following
72commands. 73commands. Please adjust the audio devices to your needs (/dev/dsp* and hw:x,x).
73 74
74If you just want to test audio (very poor quality): 75If you just want to test audio (very poor quality):
75cat /dev/dsp1 > /dev/dsp 76cat /dev/dsp1 > /dev/dsp
@@ -80,6 +81,10 @@ sox -2 --endian little -r 96000 -t oss /dev/dsp1 -t oss /dev/dsp
80If you use arts try: 81If you use arts try:
81arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B - 82arecord -D hw:1,0 -r96000 -c2 -f S16_LE | artsdsp aplay -B -
82 83
84If you use mplayer try:
85mplayer -radio adevice=hw=1.0:arate=96000 \
86 -rawaudio rate=96000 \
87 radio://<frequency>/capture
83 88
84Module Parameters 89Module Parameters
85================= 90=================