gigaset: documentation amendments
Various additions and improvements to the Gigaset driver's README file, and added comments to its userspace visible include file. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tilman Schmidt
David S. Miller
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@ -68,10 +68,10 @@ GigaSet 307x Device Driver
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for troubleshooting or to pass module parameters.
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The module ser_gigaset provides a serial line discipline N_GIGASET_M101
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which drives the device through the regular serial line driver. It must
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be attached to the serial line to which the M101 is connected with the
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ldattach(8) command (requires util-linux-ng release 2.14 or later), for
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example:
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which uses the regular serial port driver to access the device, and must
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therefore be attached to the serial device to which the M101 is connected.
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The ldattach(8) command (included in util-linux-ng release 2.14 or later)
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can be used for that purpose, for example:
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ldattach GIGASET_M101 /dev/ttyS1
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This will open the device file, attach the line discipline to it, and
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then sleep in the background, keeping the device open so that the line
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@ -84,6 +84,22 @@ GigaSet 307x Device Driver
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'gigaset' is officially assigned to this project by LANANA.)
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Alternatively, just add the 'ldattach' command line to /etc/rc.local.
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The modules accept the following parameters:
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Module Parameter Meaning
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gigaset debug debug level (see section 3.2.)
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startmode initial operation mode (see section 2.5.):
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bas_gigaset ) 1=ISDN4linux/CAPI (default), 0=Unimodem
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ser_gigaset )
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usb_gigaset ) cidmode initial Call-ID mode setting (see section
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2.5.): 1=on (default), 0=off
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Depending on your distribution you may want to create a separate module
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configuration file /etc/modprobe.d/gigaset for these, or add them to a
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custom file like /etc/modprobe.conf.local.
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2.2. Device nodes for user space programs
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------------------------------------
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The device can be accessed from user space (eg. by the user space tools
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@ -93,12 +109,49 @@ GigaSet 307x Device Driver
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- /dev/ttyGU0 for M105 (USB data boxes)
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- /dev/ttyGB0 for the base driver (direct USB connection)
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You can also select a "default device" which is used by the frontends when
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If you connect more than one device of a type, they will get consecutive
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device nodes, eg. /dev/ttyGU1 for a second M105.
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You can also set a "default device" for the user space tools to use when
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no device node is given as parameter, by creating a symlink /dev/ttyG to
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one of them, eg.:
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ln -s /dev/ttyGB0 /dev/ttyG
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The devices accept the following device specific ioctl calls
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(defined in gigaset_dev.h):
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ioctl(int fd, GIGASET_REDIR, int *cmd);
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If cmd==1, the device is set to be controlled exclusively through the
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character device node; access from the ISDN subsystem is blocked.
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If cmd==0, the device is set to be used from the ISDN subsystem and does
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not communicate through the character device node.
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ioctl(int fd, GIGASET_CONFIG, int *cmd);
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(ser_gigaset and usb_gigaset only)
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If cmd==1, the device is set to adapter configuration mode where commands
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are interpreted by the M10x DECT adapter itself instead of being
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forwarded to the base station. In this mode, the device accepts the
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commands described in Siemens document "AT-Kommando Alignment M10x Data"
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for setting the operation mode, associating with a base station and
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querying parameters like field strengh and signal quality.
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Note that there is no ioctl command for leaving adapter configuration
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mode and returning to regular operation. In order to leave adapter
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configuration mode, write the command ATO to the device.
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ioctl(int fd, GIGASET_BRKCHARS, unsigned char brkchars[6]);
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(usb_gigaset only)
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Set the break characters on an M105's internal serial adapter to the six
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bytes stored in brkchars[]. Unused bytes should be set to zero.
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ioctl(int fd, GIGASET_VERSION, unsigned version[4]);
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Retrieve version information from the driver. version[0] must be set to
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one of:
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- GIGVER_DRIVER: retrieve driver version
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- GIGVER_COMPAT: retrieve interface compatibility version
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- GIGVER_FWBASE: retrieve the firmware version of the base
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Upon return, version[] is filled with the requested version information.
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2.3. ISDN4linux
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----------
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This is the "normal" mode of operation. After loading the module you can
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@ -113,15 +166,24 @@ GigaSet 307x Device Driver
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Connection State: 0, Response: -1
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gigaset_process_response: resp_code -1 in ConState 0 !
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Timeout occurred
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you might need to use unimodem mode. (see section 2.5.)
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you probably need to use unimodem mode. (see section 2.5.)
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2.4. CAPI
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----
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If the driver is compiled with CAPI support (kernel configuration option
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GIGASET_CAPI, experimental) it can also be used with CAPI 2.0 kernel and
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user space applications. ISDN4Linux is supported in this configuration
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user space applications. For user space access, the module capi.ko must
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be loaded. The capiinit command (included in the capi4k-utils package)
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does this for you.
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The CAPI variant of the driver supports legacy ISDN4Linux applications
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via the capidrv compatibility driver. The kernel module capidrv.ko must
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be loaded explicitly ("modprobe capidrv") if needed.
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be loaded explicitly with the command
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modprobe capidrv
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if needed, and cannot be unloaded again without unloading the driver
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first. (These are limitations of capidrv.)
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The note about unimodem mode in the preceding section applies here, too.
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2.5. Unimodem mode
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-------------
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@ -134,9 +196,14 @@ GigaSet 307x Device Driver
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You can switch back using
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gigacontr --mode isdn
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You can also load the driver using e.g.
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You can also put the driver directly into Unimodem mode when it's loaded,
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by passing the module parameter startmode=0 to the hardware specific
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module, e.g.
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modprobe usb_gigaset startmode=0
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to prevent the driver from starting in "isdn4linux mode".
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or by adding a line like
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options usb_gigaset startmode=0
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to an appropriate module configuration file, like /etc/modprobe.d/gigaset
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or /etc/modprobe.conf.local.
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In this mode the device works like a modem connected to a serial port
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(the /dev/ttyGU0, ... mentioned above) which understands the commands
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@ -164,9 +231,8 @@ GigaSet 307x Device Driver
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options ppp_async flag_time=0
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to /etc/modprobe.conf. If your distribution has some local module
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configuration file like /etc/modprobe.conf.local,
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using that should be preferred.
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to an appropriate module configuration file, like /etc/modprobe.d/gigaset
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or /etc/modprobe.conf.local.
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2.6. Call-ID (CID) mode
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------------------
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@ -189,12 +255,13 @@ GigaSet 307x Device Driver
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settings (CID mode).
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- If you have several DECT data devices (M10x) which you want to use
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in turn, select Unimodem mode by passing the parameter "cidmode=0" to
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the driver ("modprobe usb_gigaset cidmode=0" or modprobe.conf).
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the appropriate driver module (ser_gigaset or usb_gigaset).
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If you want both of these at once, you are out of luck.
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You can also use /sys/class/tty/ttyGxy/cidmode for changing the CID mode
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setting (ttyGxy is ttyGU0 or ttyGB0).
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You can also use the tty class parameter "cidmode" of the device to
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change its CID mode while the driver is loaded, eg.
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echo 0 > /sys/class/tty/ttyGU0/cidmode
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2.7. Unregistered Wireless Devices (M101/M105)
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-----------------------------------------
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@ -208,7 +275,7 @@ GigaSet 307x Device Driver
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driver. In that situation, a restricted set of functions is available
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which includes, in particular, those necessary for registering the device
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to a base or for switching it between Fixed Part and Portable Part
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modes.
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modes. See the gigacontr(8) manpage for details.
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3. Troubleshooting
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---------------
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@ -222,9 +289,7 @@ GigaSet 307x Device Driver
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options isdn dialtimeout=15
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to /etc/modprobe.conf. If your distribution has some local module
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configuration file like /etc/modprobe.conf.local,
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using that should be preferred.
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to /etc/modprobe.d/gigaset, /etc/modprobe.conf.local or a similar file.
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Problem:
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Your isdn script aborts with a message about isdnlog.
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@ -264,7 +329,8 @@ GigaSet 307x Device Driver
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The initial value can be set using the debug parameter when loading the
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module "gigaset", e.g. by adding a line
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options gigaset debug=0
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to /etc/modprobe.conf, ...
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to your module configuration file, eg. /etc/modprobe.d/gigaset or
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/etc/modprobe.conf.local.
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Generated debugging information can be found
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- as output of the command
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@ -16,15 +16,23 @@
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#include <linux/ioctl.h>
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/* The magic IOCTL value for this interface. */
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#define GIGASET_IOCTL 0x47
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#define GIGVER_DRIVER 0
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#define GIGVER_COMPAT 1
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#define GIGVER_FWBASE 2
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/* enable/disable device control via character device (lock out ISDN subsys) */
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#define GIGASET_REDIR _IOWR(GIGASET_IOCTL, 0, int)
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#define GIGASET_REDIR _IOWR (GIGASET_IOCTL, 0, int)
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#define GIGASET_CONFIG _IOWR (GIGASET_IOCTL, 1, int)
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#define GIGASET_BRKCHARS _IOW (GIGASET_IOCTL, 2, unsigned char[6]) //FIXME [6] okay?
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#define GIGASET_VERSION _IOWR (GIGASET_IOCTL, 3, unsigned[4])
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/* enable adapter configuration mode (M10x only) */
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#define GIGASET_CONFIG _IOWR(GIGASET_IOCTL, 1, int)
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/* set break characters (M105 only) */
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#define GIGASET_BRKCHARS _IOW(GIGASET_IOCTL, 2, unsigned char[6])
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/* get version information selected by arg[0] */
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#define GIGASET_VERSION _IOWR(GIGASET_IOCTL, 3, unsigned[4])
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/* values for GIGASET_VERSION arg[0] */
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#define GIGVER_DRIVER 0 /* get driver version */
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#define GIGVER_COMPAT 1 /* get interface compatibility version */
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#define GIGVER_FWBASE 2 /* get base station firmware version */
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#endif
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