Hi,
I just bought an Avision AV220 scanner and I'm trying to get it going on RedHat ES 4 (2.6.9-5.EL). When I run sane-find-scanner, it finds the device at libusb:002:005. When I run scanImage -L, no scanners are detected. I put things in debug mode and I got the following output. I'm suspecting that the kernel has laid claim to the scanner. How do I get SANE to control the scanner or should I do something else???? The permissions for /proc/bus/usb/002 are 777 and 666 for /proc/bus/usb/002/005 Thanks for the help! [avision] sane_init: parsing config line "usb 0x0638 0x0a23" [avision] sane_init: config file line 23: trying to attach USB:`usb 0x0638 0x0a23' [sanei_usb] sanei_usb_find_devices: vendor=0x0638, product=0x0a23 [avision] attach: [avision] attach: opening libusb:002:005 [sanei_usb] sanei_usb_open: trying to open device `libusb:002:005' Check that you have permissions to write to 002/005 and, if you don't, that you set up hotplug (http://linux-hotplug.sourceforge.net/) correctly. USB error: could not claim interface 0: Device or resource busy [sanei_usb] sanei_usb_open: libusb complained: could not claim interface 0: Device or resource busy [sanei_usb] Maybe the kernel scanner driver claims the scanner's interface? [avision] attach: open failed (Device busy) [avision] sane_init: Trying to find USB device 638 a27 ... -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.alioth.debian.org/pipermail/sane-devel/attachments/20060629/0977d496/attachment.html From an...@pfeiffer.edu Thu Jun 29 15:19:48 2006 From: an...@pfeiffer.edu (m. allan noah) Date: Thu Jun 29 15:21:15 2006 Subject: [sane-devel] Kernel claiming device? In-Reply-To: <020001c69b8b$51822180$5f00a...@rx30.com> References: <020001c69b8b$51822180$5f00a...@rx30.com> Message-ID: <pine.lnx.4.61.0606291117310.8...@limos.pfeiffer.edu> try it as root. if this works, then you have a permissions problem on the usb files in /proc. if you change the perms by hand, it will work, but only until you next reboot or unplug the device. hotplug/udev can be used to change these permanently. allan On Thu, 29 Jun 2006, Kerry Menzel wrote: > Hi, > > > > I just bought an Avision AV220 scanner and I'm trying to get it going on > > RedHat ES 4 (2.6.9-5.EL). When I run sane-find-scanner, it finds the > > device at libusb:002:005. When I run scanImage -L, no scanners are > > detected. I put things in debug mode and I got the following output. I'm > > suspecting that the kernel has laid claim to the scanner. How do I get > > SANE to control the scanner or should I do something else???? > > The permissions for /proc/bus/usb/002 are 777 and 666 > > for /proc/bus/usb/002/005 > > > > Thanks for the help! > > > > [avision] sane_init: parsing config line "usb 0x0638 0x0a23" > > [avision] sane_init: config file line 23: trying to attach USB:`usb > > 0x0638 0x0a23' > > [sanei_usb] sanei_usb_find_devices: vendor=0x0638, product=0x0a23 > > [avision] attach: > > [avision] attach: opening libusb:002:005 > > [sanei_usb] sanei_usb_open: trying to open device `libusb:002:005' > > Check that you have permissions to write to 002/005 and, if you don't, > > that you set up hotplug (http://linux-hotplug.sourceforge.net/) > > correctly. > > USB error: could not claim interface 0: Device or resource busy > > [sanei_usb] sanei_usb_open: libusb complained: could not claim interface > > 0: Device or resource busy > > [sanei_usb] Maybe the kernel scanner driver claims the scanner's > > interface? > > [avision] attach: open failed (Device busy) > > [avision] sane_init: Trying to find USB device 638 a27 ... > > -- "so don't tell us it can't be done, putting down what you don't know. money isn't our god, integrity will free our souls" - Max Cavalera
