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-rw-r--r--Documentation/input/yealink.txt34
1 files changed, 25 insertions, 9 deletions
diff --git a/Documentation/input/yealink.txt b/Documentation/input/yealink.txt
index 5665c32e2a9..85f095a7ad0 100644
--- a/Documentation/input/yealink.txt
+++ b/Documentation/input/yealink.txt
@@ -1,16 +1,18 @@
-yealink - Linux driver for usb-p1k phones
+Driver documentation for yealink usb-p1k phones
0. Status
~~~~~~~~~
The p1k is a relatively cheap usb 1.1 phone with:
- - keyboard full support
- - LCD full support
- - LED full support
- - dialtone full support
- - ringtone full support
- - audio playback via generic usb audio diver
- - audio record via generic usb audio diver
+ - keyboard full support, yealink.ko / input event API
+ - LCD full support, yealink.ko / sysfs API
+ - LED full support, yealink.ko / sysfs API
+ - dialtone full support, yealink.ko / sysfs API
+ - ringtone full support, yealink.ko / sysfs API
+ - audio playback full support, snd_usb_audio.ko / alsa API
+ - audio record full support, snd_usb_audio.ko / alsa API
+
+For vendor documentation see http://www.yealink.com
1. Compilation (stand alone version)
@@ -178,7 +180,21 @@ updated with the first letter of the icon.
echo -n RINGTONE > /sys/..../hide_icon
-5. Credits & Acknowledgments
+5. Sound features
+~~~~~~~~~~~~~~~~~
+Sound is supported by the ALSA driver: snd_usb_audio
+
+One 16-bit channel with sample and playback rates of 8000 Hz is the practical
+limit of the device.
+
+ Example - recording test:
+ arecord -v -d 10 -r 8000 -f S16_LE -t wav foobar.wav
+
+ Example - playback test:
+ aplay foobar.wav
+
+
+6. Credits & Acknowledgments
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- Olivier Vandorpe, for starting the usbb2k-api project doing much of
the reverse engineering.