LinuxQuestions.org - Trouble with Agfa USB snapscan with -current

I've been using my Agfa SnapScan 1212U for years with sane without much problems (except the frailty of the sane.d daemon...).
However, since the last update of -current, and the move to eudev, it fails to work properly anymore.

It's obviously seen by sane-find-scanner :

Code:

root@elephant:/etc/sane.d# sane-find-scanner 



  # sane-find-scanner will now attempt to detect your scanner. If the

  # result is different from what you expected, first make sure your

  # scanner is powered up and properly connected to your computer.



  # No SCSI scanners found. If you expected something different, make sure that

  # you have loaded a kernel SCSI driver for your SCSI adapter.



found USB scanner (vendor=0x06bd [AGFA ], product=0x2061 [SNAPSCAN]) at libusb:004:003

It is also found by scanimage :

Code:

root@elephant:/etc/sane.d# scanimage -vvv -Ldevice `snapscan:libusb:004:003' is a AGFA SNAPSCAN flatbed scanner

Calling sane_exit

scanimage: finished

However, as soon as I try to scan, it hangs and afterward, the scanner is not detecter anymore by scanimage, though still visible by sane-find-scanner.
I get an I/O error that I never had before :

Code:

root@elephant:/etc/sane.d# SANE_DEBUG_SNAPSCAN=255 scanimage -x 100 -y 100 --format=tiff >image.tiff

[sanei_debug] Setting debug level of snapscan to 255.

[snapscan] sane_snapscan_init

[snapscan] sane_snapscan_init: Snapscan backend version 1.4.53

[snapscan] add_usb_device(libusb:004:003)

[snapscan] add_usb_device: Detected (kind of) an USB device

[snapscan] snapscani_usb_open(libusb:004:003)

[snapscan] add_usb_device: Checking if 0x06bd is a supported USB vendor ID

[snapscan] snapscani_check_device()

[snapscan] mini_inquiry

[snapscan] snapscan_cmd

[snapscan] snapscani_usb_cmd(0,0x7ffe70216b40,6,0x7ffe70216b50,0x7ffe70216b48 (36))

[snapscan] atomic_usb_cmd(0,0x7ffe70216b40,6,0x7ffe70216b50,0x7ffe70216b48 (36))

[snapscan] usb_cmd(0,0x7ffe70216b40,6,0x7ffe70216b50,0x7ffe70216b48 (36))

[snapscan] usb_cmd: cmdlen=6, datalen=0

[snapscan] usb_write: writing:  0x12 0x00 0x00 0x00 0x24 0x00

[snapscan] Written 6 bytes

[snapscan] usb_read Only 0 bytes read

[snapscan] usb_read: reading:  0x48 0x6b 0x21 0x70 0xfe 0x7f 0x00 0x00

[snapscan] Read 0 bytes

[snapscan] mini_inquiry: snapscan_cmd command failed: Error during device I/O

[snapscan] snapscani_check_device: mini_inquiry failed with Error during device I/O.

[snapscan] snapscani_usb_close(0)

[snapscan] 1st read 0 write 1

[snapscan] sane_snapscan_get_devices (0x7ffe70217d78, 0)

scanimage: no SANE devices found

[snapscan] sane_snapscan_exit

If anyone has a clue, I'll be grateful.