Re: pkg/50340 (USB scanners stopped working with xsane)

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR pkg/50340; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: pkg/50340 (USB scanners stopped working with xsane)
Date: Thu, 21 Jan 2016 14:52:48 +0100

 After fixing permissions of the ugen device nodes and enabling some
 debugging I get this:
 
 > setenv SANE_DEBUG_MUSTEK_USB 255
 > setenv SANE_DEBUG_SANEI_USB 255
 > scanimage -d "mustek_usb:libusb:003:002"
 [..]
 [mustek_usb] usb_low_read_all_registers: start
 [mustek_usb] usb_low_get_a2: start
 [mustek_usb] usb_low_read_reg: trying to write 2 bytes
 [sanei_usb] sanei_usb_write_bulk: trying to write 2 bytes
 [sanei_usb] 000 00 22                                           ."              
 [sanei_usb] sanei_usb_write_bulk: write failed: Other error
 [mustek_usb] usb_low_read_reg: couldn't write, tried to write 2, wrote 0: Error during device I/O
 scanimage: open of device mustek_usb:libusb:003:002 failed: Error during device I/O
 [mustek_usb] sane_exit: start
 [mustek_usb] usb_high_scan_exit: start
 [mustek_usb] usb_low_exit: chip = 0xfffffffff6626100
 [mustek_usb] usb_low_close: start, chip=0xfffffffff6626100
 [sanei_usb] sanei_usb_close: closing device 0
 [sanei_usb] sanei_usb_set_altinterface: alternate = 0
 [sanei_usb] sanei_usb_set_altinterface: libusb complained: Other error
 
 Sounds like a libusb issue - will look deeper in there.
 
 Martin