Yea, the file originally installed by libftdi had 6010 as the product ID,
which I found odd.
>From lsusb:
Bus 002 Device 003: ID 0403:6001 Future Technology Devices
International, Ltd FT232 USB-Serial (UART) IC
OK, emerge strace and ran it with that, and here's what it's opening:
open("/etc/ld.so.cache", O_RDONLY) = 3
open("/usr/lib/libftdi.so.1", O_RDONLY) = 3
open("/lib/libc.so.6", O_RDONLY) = 3
open("/lib/libusb-0.1.so.4", O_RDONLY) = 3
open("/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC)
= 3
open("/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC)
= 3
open("/dev/bus/usb/001",
O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
open("/dev/bus/usb/001/001", O_RDWR) = 4
open("/dev/bus/usb/001/001", O_RDWR) = 3
open("/dev/bus/usb/002",
O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
open("/dev/bus/usb/002/005", O_RDWR) = 4
open("/dev/bus/usb/002/004", O_RDWR) = 4
open("/dev/bus/usb/002/003", O_RDWR) = 4
open("/dev/bus/usb/002/002", O_RDWR) = 4
open("/dev/bus/usb/002/001", O_RDWR) = 4
open("/dev/bus/usb/002/005", O_RDWR) = 3
open("/dev/bus/usb/002/004", O_RDWR) = 3
open("/dev/bus/usb/002/003", O_RDWR) = 3
open("/dev/bus/usb/002/002", O_RDWR) = 3
open("/dev/bus/usb/002/001", O_RDWR) = 3
open("/dev/bus/usb/002/003", O_RDWR) = 3
open("/dev/bus/usb/002/003", O_RDWR) = 3
What's odd/wrong is that /dev/bus/usb/002/003 is owned by root, and in the
usb group. Shouldn't udev be putting it in the plugdev group? Adding
myself to the usb group fixed the problem, but I'd prefer to understand what
I'm doing wrong or incorrectly expecting udev to do.
--jc
On Fri, Aug 7, 2009 at 9:10 PM, Michael Plante <[email protected]>wrote:
> I apologize. I was looking at only part of what I had. I don't know.
> Can you see the permissions on the file libusb actually tries to open?
>
> -----Original Message-----
> *From:* Michael Plante [mailto:[email protected]]
> *Sent:* Friday, August 07, 2009 8:07 PM
> *To:* [email protected]
> *Subject:* RE: Permissions issues?
>
> Is that product ID correct? I have 6010, not 6001, on my system.
>
> -----Original Message-----
> *From:* [email protected] [mailto:[email protected]]*on Behalf Of *J.C. Wren
> *Sent:* Friday, August 07, 2009 7:31 PM
> *To:* [email protected]
> *Subject:* Permissions issues?
>
> I've got a 99-libftdi.rules file with the following line:
>
> SUBSYSTEM=="usb_device", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001",
> MODE="0664", GROUP="plugdev"
>
>
> And my user is a member of plugdev:
>
> plugdev:x:1003:haldaemon,jcw
>
>
> But when I try to perform an operation on the device, I get
>
> can't open ftdi device: (-8) inappropriate permissions on device!
>
>
> What might I be doing wrong here?
>
> Thanks,
> --jc
>
>
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