This version of this document is no longer maintained.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

devi-tahoe

Tahoe input manager for Photon

Syntax:

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

Options:

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:

-b

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).

-l

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

-P

Disable the Photon interface (interface started by default.)

-r

Start the resource manager interface. Use this option only if you're not using Photon.

-v[v]...

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:

• ps2 -- ps/2 mouse

  No options

kbd [options]

Keyboard scan codes (connected to primary keyboard).

Options:

-k rate[,delay]

Keyboard rate (Hz) /delay(ms) (default 40Hz, 1000ms)

---

This option works only in conjunction with the Kb device module.

---

-R

Don't reset the device while doing a protocol reset.

-r

Reset the device while doing a protocol reset.

-s

Device driver should supply valid symbols.

The device modules and their options are:

• sh4 -- mouse device module.

  -b base

  The base port address (default 0xb0000000).

  -i irq

  The IRQ for the serial device (default 0x80010007).

  -o offset

  The offset for the PS2 controller register.

• sh4kbd -- keyboard device module.

  -b base

  The base port address (default 0xb0000000).

  -i irq

  The IRQ for the serial device (default 0x8001000f).

  -o offset

  The offset for the PS2 controller register.

  ---

  The -b and -o options are common parameters for sh4 and sh4kbd. You can't set them differently.

  ---

The filter modules and their options are:

• keyboard -- translate scan code to UNICODE.

  -k kbd_file

  The file to use for keyboard mapping.

• rel -- filters and compresses relative coordinate "mouse" events.

  -a

  The wheel acceleration parameter (default 10). When the value of this parameter increases, the mouse wheel acceleration increases also.

  -G gain

  Motion multiplier (default 1).

  -l

  Swap right and left buttons.

  -T threshold

  The speed-doubling threshold in mickeys.

  -x

  Reverse the x coordinates.

  -y

  Reverse the y coordinates.

Description:

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

Examples:

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

devi-tahoe ps2 sh4 kbd sh4kbd

See also:

inputtrap

Input drivers (devi-*) in the Utilities Summary