25 Jun 2011
gpsdctl
8
The GPSD Project
GPSD Documentation
gpsdctl
tool for sending commands to gpsd over its control socket
gpdsctl
action
device
DESCRIPTION
This is a tool for sending an instance of
gpsd commands over its control socket to
add or remove devices from the daemon's device list. It is not
intended to be called by users, but rather by the Linux hotplug
system and similar facilities.
The action argument may be "add" or "remove". If no daemon
instance is running when an add is requested, this program will launch
one.
The "device" argument should be the pathname of a device. A
device on the list will be opened to read sensor data whenever a
client requests a watch.
Two environment variables are
interpreted. GPSD_SOCKET sets the location of the
control socket. It defaults to
/var/run/gpsd.sock if the effective user ID of
this program is root, /tmp/gpsd.sock
otherwise.
GPSD_OPTIONS
may be a list of options to be passed to gpsd
when this tool launches it. It defaults to an empty string.
RETURN VALUES
1 if the action was unknown or the write to the control socket
failed, 0 otherwise
SEE ALSO
gpsd8,
gpsctl1,
gps1,
libgps3,
libgpsd3,
gpsprof1,
gpsfake1.
AUTHOR
Eric S. Raymond esr@thyrsus.com.