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-rw-r--r--Documentation/input/yealink.txt19
1 files changed, 16 insertions, 3 deletions
diff --git a/Documentation/input/yealink.txt b/Documentation/input/yealink.txt
index 85f095a7ad04..0962c5c948be 100644
--- a/Documentation/input/yealink.txt
+++ b/Documentation/input/yealink.txt
@@ -2,7 +2,6 @@ Driver documentation for yealink usb-p1k phones
0. Status
~~~~~~~~~
-
The p1k is a relatively cheap usb 1.1 phone with:
- keyboard full support, yealink.ko / input event API
- LCD full support, yealink.ko / sysfs API
@@ -17,9 +16,8 @@ For vendor documentation see http://www.yealink.com
1. Compilation (stand alone version)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
Currently only kernel 2.6.x.y versions are supported.
-In order to build the yealink.ko module do:
+In order to build the yealink.ko module do
make
@@ -28,6 +26,21 @@ the Makefile is pointing to the location where your kernel sources
are located, default /usr/src/linux.
+1.1 Troubleshooting
+~~~~~~~~~~~~~~~~~~~
+Q: Module yealink compiled and installed without any problem but phone
+ is not initialized and does not react to any actions.
+A: If you see something like:
+ hiddev0: USB HID v1.00 Device [Yealink Network Technology Ltd. VOIP USB Phone
+ in dmesg, it means that the hid driver has grabbed the device first. Try to
+ load module yealink before any other usb hid driver. Please see the
+ instructions provided by your distribution on module configuration.
+
+Q: Phone is working now (displays version and accepts keypad input) but I can't
+ find the sysfs files.
+A: The sysfs files are located on the particular usb endpoint. On most
+ distributions you can do: "find /sys/ -name get_icons" for a hint.
+
2. keyboard features
~~~~~~~~~~~~~~~~~~~~