USB driver for PMD 1024LS

Hello Everyone,

I have a Digital I/O device that uses a 82C55 internally and is connected by 
USB. There is no documentation or development kit available for linux, and 
the vendor (Personal Measurement Device) said that some linux group is 
working on a driver that is not released yet. So I decided to write a linux 
driver on my own. The protocol used for communication via USB is quite simple 
(actually I monitored the USB transfer of the device with a Windows tool).

So, at the present stage I have a small example program that allows me to read 
and write the ports. There is a 32-bit counter as well. To access USB, I use 
libusb. However, the device seems to be a USB-HID device, and is thus claimed 
by the usbhid-module. I think this is supposed to be a much easier way to 
access the device, but I was unable to get anything useful out 
of /dev/usb/hiddev0.

I would like to see this device supported by comedi, so I want to ask here,
I there is any interest to have this device supported? Because I am no expert
to the comedi-intera I would also like to know if and how USB devices are 
supported by comedi?

Regards,
Holger

Received on 2004-09-09Z06:09:14