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-rw-r--r--Documentation/isdn/README.gigaset23
1 files changed, 22 insertions, 1 deletions
diff --git a/Documentation/isdn/README.gigaset b/Documentation/isdn/README.gigaset
index 02c0e9341dd8..f6e9eaa75967 100644
--- a/Documentation/isdn/README.gigaset
+++ b/Documentation/isdn/README.gigaset
@@ -192,7 +192,6 @@ GigaSet 307x Device Driver
2.6. M105 Undocumented USB Requests
------------------------------
-
The Gigaset M105 USB data box understands a couple of useful, but
undocumented USB commands. These requests are not used in normal
operation (for wireless access to the base), but are needed for access
@@ -204,6 +203,20 @@ GigaSet 307x Device Driver
M105, try setting that option to "y" via 'make {x,menu}config' and
recompiling the driver.
+2.7. Unregistered Wireless Devices (M101/M105)
+ -----------------------------------------
+ The main purpose of the ser_gigaset and usb_gigaset drivers is to allow
+ the M101 and M105 wireless devices to be used as ISDN devices for ISDN
+ connections through a Gigaset base. Therefore they assume that the device
+ is registered to a DECT base.
+
+ If the M101/M105 device is not registered to a base, initialization of
+ the device fails, and a corresponding error message is logged by the
+ driver. In that situation, a restricted set of functions is available
+ which includes, in particular, those necessary for registering the device
+ to a base or for switching it between Fixed Part and Portable Part
+ modes. For the M105, these commands require the "Support for undocumented
+ USB requests" configuration option (see section 2.6.) to be enabled.
3. Troubleshooting
---------------
@@ -240,6 +253,14 @@ GigaSet 307x Device Driver
Recompile the usb_gigaset driver with the kernel configuration option
CONFIG_GIGASET_UNDOCREQ set to 'y'. (see section 2.6.)
+ Problem:
+ Messages like this:
+ usb_gigaset 3-2:1.0: Could not initialize the device.
+ appear in your syslog.
+ Solution:
+ Check whether your M10x wireless device is correctly registered to the
+ Gigaset base. (see section 2.7.)
+
3.2. Telling the driver to provide more information
----------------------------------------------
Building the driver with the "Gigaset debugging" kernel configuration