what are the perms on /proc/bus/usb/001/017
allan
2008/2/20 Ken Bender <bender647 at gmail.com>:
> Hi,
>
> I'm in a tricky situation -- at work I have a Opteron workstation
> running the antiquated RHEL3 os with no opportunity by me to upgrade
> anything except by installing newer versions of software in my user
> prefix (I can gain root access to tweak hotplug scripts, etc, but
> shouldn't upgrade system packages). I've installed libusb-0.1.12,
> sane-backends-1.0.19 and sane-frontends-1.0.14 in my user prefix.
>
> I'm trying to get a Canon LiDe25 scanner working here (it works fine at
> home with my newer machines).
>
> This is the tail of the error I get from scanimage -L:
>
> [sanei_usb] sanei_usb_open: opened usb device `libusb:001:017' (*dn=0)
> [sanei_usb] sanei_usb_get_vendor_product: device 0: vendorID: 0x04a9,
> productID: 0x2220
> [sanei_usb] sanei_usb_write_bulk: trying to write 4 bytes
> [sanei_usb] 0000: 01 69 00 01
> .i..............
> USB error: error submitting URB: Invalid argument
> [sanei_usb] sanei_usb_write_bulk: write failed: Invalid argument
> [sanei_usb] sanei_usb_close: closing device 0
>
> And here's an ominous /var/log/messages entry:
>
> Feb 20 10:22:26 myhost kernel: ioctl32(scanimage:17106): Unknown cmd fd(3)
> cmd(
> 802c550a){00} arg(ffff50f0) on /proc/bus/usb/001/017
>
> I've had hotplug USB errors on this box before when too many things were
> plugged
> in (order of hotplug is important). So I'm using a powered USB hub to power
> the scanner
> but the results haven't changed.
>
> The scanner is on 1/17:
> $ lsusb
> Bus 001 Device 017: ID 04a9:2220 Canon, Inc.
>
> Any pointers on what these messages mean?
>
>
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