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Re: [avrdude-dev] avrisp mk II in linux

From: Joerg Wunsch
Subject: Re: [avrdude-dev] avrisp mk II in linux
Date: Wed, 20 Dec 2006 23:07:12 +0100
User-agent: Mutt/1.5.11

As Naveen Goswamy wrote:

> avrdude: usb_open(): cannot read serial number "error sending control 
> message: Operation not permitted"
> avrdude: usb_open(): cannot read product name "error sending control 
> message: Operation not permitted"
> avrdude: usbdev_open(): error setting configuration 1: could not set 
> config 1: Operation not permitted
> avrdude: usbdev_open(): did not find any USB device "usb"

> I have set udev to enable permissions 0666 as in:

> $ ls -al /dev/bus/usb/002/006
> crw-rw-rw- 1 root root 189, 133 2006-12-20 16:12 /dev/bus/usb/002/006

Try to strace this, and see whether it's the correct device.  If the
problem persists, sorry, I have to refer you to the libusb people for
help.  If libusb cannot access the device, there's nothing AVRDUDE
could do for you.

Curious, does it work correctly when you're running it as root?

Perhaps there's any other security measure activated that checks more
than just the device's permission bits?  (I'm a bit clueless on Linux
here, I could tell you more about FreeBSD...)

cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)

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