PowerMate Interface Library for Linux

Description

Interface Library to the Griffin PowerMate for Linux. The library includs a (minimalist) generic classes for the Linux Input Event Interface and convenience methods for Linux's ioctl(2) system call. Library probably works only on x86 because of values taken directly from asm/ioctl.h

(c) Oliver M. Bolzer <oliver@fakeroot.net>, 2002

Revision History

v0.5 (Feb 10, 2002)

• remember LED status so we can set individual values there is no way to know the previous values, so we set some sane values (everything off) the first time we write the status register
• set/get various LED status bits ( brightness, pulse_speed, pulse_mode, pulse_awake?, pulse_asleep? )

v0.4 (Feb 7,2002)

• improve documentation for use with RDoc http://rdoc.sourceforge.net/

v0.3.1 (Feb 4, 2002)

• detect old product ID of if the HID driver grabs the device
• also usable when only the HID driver is installed, can't change LED status though

v0.3 (Feb 3, 2002)

• LED-brightness settable (brightness=)
• record if button currently pressed

v0.2 (Feb 2, 2002)

• react and decode LED-Status-Change (PowerMate.on_led_change)

v0.1 (Feb 1, 2002)

• Initial public release

TODO

• need to detect PM unplug-replug, need to reopen device, but there is no notification on unplug. Should be polled ? (rumors say, Linux 2.5.4-preX supports plug events)
• maybe support for "click" and "double-click"

Licence

(c) Oliver M. Bolzer <oliver@fakeroot.net>, 2002 All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the author nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.