[lcd4linux] Support for USBLCD without kernel module, but libusb

[Michael R. <re...@eu...>]

Hi there,

After writing the driver for the new BWCT USB-HD44780 driver, which is 
based on libusb, I tried to modify the USBLCD driver so that it uses 
libusb, too. And it worked!

To enable the libusb version, just specify "Port 'libusb'" in 
lcd4linux.conf, instead of "Port '/dev/usblcd'" or whatever.

Of course, you have to have libusb-dev installed.

If lcd4linux fails with a message like "usb_claim_interface() failed", 
you probably have the kernel module usblcd.o installed. You have to 
unload it.

The main advantage is that you don't need the kernel module, which is 
especially useful if you have an "old" version of USBLCD (just like I 
do), which uses a different Vendor Id. I always had to patch and 
recompile the kernel module for this different id.


Have Fun!

-- 
Michael Reinelt <re...@eu...>
http://members.eunet.at/reinelt
GPG-Key 0xDF13BA50
ICQ #288386781