Failed to open device /dev/usb/ttyUSB0: No such device

efm · 04-01-2005, 12:18 AM

hello, i want to use my irda adapter, and i have to type #irattach /dev/usb/ttyUSB0 -d ma600 -s
but there is error saying Failed to open device /dev/usb/ttyUSB0: No such device
i look into /dev/usb, and ttyUSB0 does exist. so, how can i solve this?
the same thing happens when i try to #setserial /dev/usb/ttyUSB0, but if i do it other than root account,
the error would be /dev/usb/ttyUSB0: Permission denied.
please help me...

APB_4 · 04-02-2005, 03:04 PM

You probably need an entry in fstab with the user option set if you don't want to do it as root.

efm · 04-04-2005, 08:46 PM

thanks for the reply. well, the irattach must be run as root. but when i run as root, it says that it failed to open ttyUSB0, even though the ttyUSB0 does exist. please help if you have
any clue, thx.