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Caution: This version of this document is no longer maintained. For the latest documentation, see http://www.qnx.com/developers/docs.


Tahoe input manager for Photon


devi-tahoe  [general_opts]
            protocol* [protocol_opts]*
            device* [device_opts]*
            filter* [filter_opts]*


Note: When you use a devi- * driver, you need a calibration file. The calibration file is generated from the output produced by the calib utility:
calib > calib_file.txt

For more information, see the calib utility in the Utilities Reference, and Touchscreens in the Neutrino User's Guide.

General options:

Prevent the use of the Ctrl-Alt-Shift-Backspace keychord to exit Photon (permitted by default).
-d device
Device (default: /dev/photon or $PHOTON).
-g input_group
Input group (default: 1).
List the internal modules. Modules are listed in the following format where class is one of: D -- Device, P -- Protocol, or F -- Filter:
module name | date last compiled | revision | class
Disable the Photon interface (interface started by default.)
Start the resource manager interface. Use this option only if you're not using Photon.
Verbose output. More v characters cause more verbosity.

The protocol and protocol_opts are:

ps2 sh4 [sh4_opts]  
kbd [kbd_opts] sh4kbd [sh4kbd_opts]

The protocol modules and their options are:

kbd [options]
Keyboard scan codes (connected to primary keyboard).


-k rate[,delay]
Keyboard rate (Hz) /delay(ms) (default 40Hz, 1000ms)
Note: This option works only in conjunction with the Kb device module.

Don't reset the device while doing a protocol reset.
Reset the device while doing a protocol reset.
Device driver should supply valid symbols.

The device modules and their options are:

The filter modules and their options are:


The devi-tahoe command starts the Tahoe input manager for Photon.


Typical command line to start the keyboard and PS/2 mouse:

devi-tahoe ps2 sh4 kbd sh4kbd

See also:


Input drivers (devi-*) in the Utilities Summary

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