Hello, I have a particular need to read and write a single byte to a register on a VIA chipset. I have a feeling that this is probably a lot easier than it seems, but I haven't done anything like this before.
I have a system with a VIA VT82C686 southbridge. Connected to several of its general purpose I/O lines are the LCD backlight control, and several LED's. There is a linux program available that will manipulate the register, but it fails to work under FreeBSD. The location in memory is EE4C. I can provide the original Linux code on request. Could I impose on someone to help me write a program that will read/write/modify this one register? If there is a device in /dev that covers this part, I haven't found it - so I'm not sure if it will be as simple as calling ioctl. The chipset is detected, and appears as chip1@pci0 when I run pciconf. I tried looking at /dev/pci - but I didn't get very far. I can handle the rest of the code, but accessing this register had proven to be a pain. Any help would be greatly appreciated. BTW - this is not for a commercial effort. I just want to get get FreeBSD running on this hardware for myself. Also, I am on the freebsd-questions list, not this list. Could anyone replying please CC me? Thanks, Seth Henry To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message
