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Description of problem: printing works fine but scanning does not. Get message "failed to start scanner: invalid argument" Version-Release number of selected component (if applicable): xsane-0.998-4.fc16.x86_64 How reproducible: everytime. Steps to Reproduce: 1. start simple scan. 2. hit scan button 3. errors Actual results: scanner does nothing but reports error Expected results: scanner to start up and scan. Additional info: output from app ** (simple-scan:2566): WARNING **: scanner.vala:799: Unable to get open device: Invalid argument ** (simple-scan:2566): WARNING **: scanner.vala:799: Unable to get open device: Error during device I/O output from scanimage -L [XXXXXX@XXXXX ~]$ scanimage -L device `brother2:bus3;dev2' is a Brother MFC-7420 USB scanner device `v4l:/dev/video0' is a Noname WebCam SCB-0380M virtual device [XXXXX@XXXX ~]$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 003 Device 002: ID 04f9:0180 Brother Industries, Ltd MFC-7420 Bus 001 Device 003: ID 045e:0745 Microsoft Corp. Nano Transceiver v1.0 for Bluetooth Bus 001 Device 004: ID 1210:2604 DigiTech Bus 002 Device 003: ID 8087:07d6 Intel Corp.
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Whoa, sorry for dropping this. Anyway, this is not a bug in xsane (which is just another scanning frontend), nor is it in sane-backends because the device in question needs the proprietary brscan2 driver from Brother. So the bug would have to be looked at by Brother as only they have access to the driver code and therefore the means for debugging the issue.