I'm having trouble trying to access a USB device under Fedora 7. I think udev might be my problem. When I try using avrdude with this line: [rlc@bobcp4 atmega644]$ avrdude -c usbtiny -p m644 -P usb -U flash:w:blink_pb3.hex I get this error message: avrdude: Error: Could not find USBtiny device (0x1781/0xc9f) This is what lsusb says: [root@bobcp4 ~]# lsusb Bus 001 Device 001: ID 0000:0000 Bus 003 Device 001: ID 0000:0000 Bus 004 Device 006: ID 0e6a:6001 Megawin Technology Co., Ltd Bus 004 Device 005: ID 0424:2228 Standard Microsystems Corp. Bus 004 Device 004: ID 0424:2602 Standard Microsystems Corp. Bus 004 Device 002: ID 0424:2502 Standard Microsystems Corp. Bus 004 Device 001: ID 0000:0000 Bus 002 Device 002: ID 1781:0c9f Bus 002 Device 001: ID 0000:0000 And the device is described here: http://ladyada.net/make/usbtinyisp/ (I bought the kit and built it.) I added a rule named '98-usbtiny-rules' to /etc/udev/rules.d which contains this line *SUBSYSTEM=="usb", SYSFS{idVendor}=="1781", SYSFS{idProduct}=="0c9f", GROUP="users", MODE="0660" But avrdude still can't seem to find the programmer. Am I right in believing that I need a udev rule, and if so, does the above rule look correct for what I want to do? Or am I missing another issue? Thanks Bob Cochran Greenbelt, Maryland, USA *
