devfsd.conf.5

devfsd 驱动对linux的补丁支持

.TH "devfsd.conf" "5" "1.3.21" "[e-mail]" "devfsd"
.SH "NAME"
/etc/devfsd.conf \- the main configuration file for
.BR devfsd .

.SH "FORMAT"
The main documentation for the format is in devfsd(8).

.SH "EXAMPLES"
Here are some examples of the most common usage:
.PP 
Compatibility entries, the following will create symbolic links from /dev/misc/device to /dev/device on node registration and remove them on unregistration:
.PP
REGISTER        misc            MKOLDCOMPAT
.PP
UNREGISTER      misc            RMOLDCOMPAT
.PP
The following means to ignore any \fBREGISTER\fP or \fBCHANGE\fP
entries occurring later in the file for devices matching the regex
\fB^pt[sy]/.*\fP:
.PP
REGISTER		^pt[sy]/.*		IGNORE
.PP
CHANGE		^pt[sy]/.*		IGNORE
.PP
CREATE		^pt[sy]/.*		IGNORE
.PP
This runs the partx command to tell the kernel about the partitioning
of an IDE or SCSI hard disk when one of the partitions is accessed for
the first time.  Notice the use of regular expression substituation in
the command "\\1", corresponding to the first set of parentheses in
the regular expression being matched.
.PP
LOOKUP         ^((ide|scsi)/host[0-9]+/bus[0-9]+/target[0-9]+/lun[0-9]+)/part[0-9]+$       EXECUTE /sbin/partx -a $mntpnt/\\1/disc
.PP
This calls the \fBGLOBAL\fP function to create a symlink from
/dev/tts/0 to /dev/ttyS0 and also to /dev/modem, the links will be
removed at device unregistration time. The order of link creation is
the reverse of the order in the config file. Typically the
\fBGLOBAL\fP functions are in libc. Note how the \fBmksymlink\fP
function is being used, rather than the \fBsymlink\fP function from
libc. The \fBmksymlink\fP function will create parent directories as
required, and will not generate a failure code if the symlink already
exists.
.PP
REGISTER  ^tts/0$ CFUNCTION GLOBAL mksymlink $devname modem
.PP
REGISTER  ^tts/3$ CFUNCTION GLOBAL mksymlink $devname ttyS0
.PP
UNREGISTER ^tts/0$ CFUNCTION GLOBAL unlink modem
.PP
UNREGISTER ^tts/3$ CFUNCTION GLOBAL unlink ttyS0
.PP
The other use of \fBCFUNCTION\fP and \fBMFUNCTION\fP is
to call a function in a shared object that devfsd will load.  See
the \fBexamples\fP directory for code for some shared objects.

.SH "SEE ALSO"
.BR devfsd (8)