07-22-2007
Quote:
Originally Posted by
porter
Surely IO ports are only accessible from drivers, and user processes are isolated from the hardware?
If you execute the program it echoes what you type into it, so it must be reading into the hardware correctly, right?
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UEP(4) BSD Kernel Interfaces Manual UEP(4)
NAME
uep -- eGalax touchscreen driver
SYNOPSIS
To compile this driver into the kernel, place the following lines into your kernel configuration file:
device uep
device usb
Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):
uep_load="YES"
DESCRIPTION
The uep driver provides support for the eGalax onscreen touch panels.
The driver is stub. It just probes and attaches to USB device, creates device entry and feeds reassambled packets from the hardware to it.
To get mouse working in X(7), one needs to install ports/x11-drivers/xf86-input-egalax.
BUGS
uep can't act like sysmouse(4), since the latter does not support absolute motion events.
FILES
uep creates a blocking pseudo-device file, /dev/uep0.
SEE ALSO
usb(4), loader.conf(5), xorg.conf(5) (ports/x11/xorg), egalax(4) (ports/x11-drivers/xf86-input-egalax).
AUTHORS
The uep driver was written by Gleb Smirnoff <glebius@FreeBSD.org>
BSD
May 25, 2010 BSD