[avr-chat] usbprog + avrdude on OS X

[Dean Hall]

Hello,

I have a UsbProg device (seen here: http://www.deanandara.com/ 
UsbProgSharp/) that runs the latest avrispmkiiklon firmware which  
makes it behave like an AVR-ISP MKII.  This device is able to program  
my ATmegas when connected to a Win32 PC running AVR Studio.  So I  
have good evidence that the programming device works.

I have installed the OSX-AVR package (OSX-AVR-JAN07-PPC.dmg) from  
http://www.digithink.com/OSX-AVR/Introduction/Main on my Mac (PB12"  
PPC OS 10.4.10) and have used the avr-gcc/avrdude toolchain with  
success to compile and program an ATmega on an STK500 (through a  
Keyspan serial dongle).  Of note, OSX-AVR installs the avr-gcc  
packages, libusb (libusb-0.1.4.4.4.dylib and friends) and avrdude  
compiled with libusb enabled.

Now, I would like to use avrdude to program an ATmega through the  
UsbProg connected to my Mac.  I've read as much useful info as I can,  
but I'm stuck.  I've tried thse command lines and get these error  
messages:

$ avrdude -p atmega8 -b 115200 -P usb -c avrispmkII -tuF
avrdude: usbdev_open(): did not find any USB device "usb"

$ avrdude -p atmega8 -P usb -c avrispmkII -tuF
avrdude: usbdev_open(): did not find any USB device "usb"

$ avrdude -p atmega8 -c avrispmkII -tuF
avrdude: ser_open(): can't open device "unknown": No such file or  
directory

So is my command line wrong?  Do I need an up-to-date libusb?  Or  
something else?

thanks,

!!Dean