Hello! I have a problem with UPS FSP EP650 with COM-port and Debian. The device is workable (I have tested it under Windows), but under Linux it doesn't works. My hardware: motherboard: Gigabyte GA-D510UD (Intel NM10, iTE IT8720 chipset) UPS: FSP EP 650 My software: Debian Squeeze with kernel 2.6.32-5 NUT COM-ports has detected: dmesg | grep tty [ 1.244470] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [ 1.244596] serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A [ 1.245034] 00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A [ 1.245223] 00:09: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A but cat /dev/ttyS0 or cat /dev/ttyS1 shows blank screen minicom doesn't work also I use NUT for my ups with following ups.conf: user = root [fsp] driver = apcsmart port = /dev/ttyS0 nas:~# upsdrvctl start Network UPS Tools - UPS driver controller 2.4.3 Network UPS Tools - APC Smart protocol driver 2.03 (2.4.3) APC command table version 2.1 Unable to detect an APC Smart protocol UPS on port /dev/ttyS0 Check the cabling, port name or model name and try again Driver failed to start (exit status=1) Also I tried to write and read something from COM-ports using simple program written in Python - no results. A suppose, that it is lowlevel problem with modules or kernel. Can anybody help me? Best regards, Max Usachev |