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mdetect - Online in the Cloud

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This is the command mdetect that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator



mdetect - mouse device autodetection tool


mdetect [option ...]


mdetect may be run without arguments.

-h display a help message and exit

-n do not search for PnP (Plug 'n' Play) mice

-r [not yet implemented]

-v be verbose; this option may be specified multiple times for increasing levels of

-o produce output appropriate for XFree86 3.x configuration

-x produce output appropriate for XFree86 4.x configuration


mdetect is a tool for autoconfiguring mice and compatible pointing devices; it is
typically used as the backend to some user-friendly frontend code that, for example, asks
the user to move the mouse for a moment. mdetect is then run while user is producing
input on the mouse device. While mouse motion during detection is sometimes unnecessary,
it is seldom problematic.

mdetect writes the autodetected mouse device and protocol to standard output. Unless
either of the -o or -x options is given, mdetect produces output appropriate for
configuring the gpm(1) program. Alternatively, output appropriate for an XFree86 X server
configuration file is produced. If the -v option is given, some information about the
program's status is also written to standard output, but this is largely unimplemented at
this writing.

If mdetect is unable to find a mouse device, it exits after a few seconds of searching.


Detection of serial and PS/2 devices is often aided by moving the mouse while mdetect

Terminals connected to serial ports may display a small amount of garbage to the screen
while mdetect probes them, but this a harmless side-effect; the terminal's line settings
are restored after the port has been probed.


mdetect's exit status is used to communicate information.

0 mdetect found a mouse and exited normally.

1 An error occurred while attempting to read from the mouse device.

2 mdetect timed out and gave up searching for a mouse device; this indicates either
that no mouse device is attached to the computer, or that a mouse device exists
which mdetect knows nothing about. This also happens if your only mouse device(s)
are already open and in use; for instance, by gpm or an X Window System server.

3 An error occurred while trying to set up mdetect's signal handler.

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