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Description of problem: When trying to connect a USB camera to a Windows 7 VM running on RHEL6, Windows reports an error on the USB device and the following error shows up in the VM log file: 'husb: ctrl buffer too small (3273 > 2048)' This appears to be the exact same issue as BZ# 627343 which was fixed for RHEL5. Any chance we can get the patch into RHEL6? Version-Release number of selected component (if applicable): qemu-kvm-0.12.1.2-2.113.el6_0.6.x86_64 How reproducible: Always
Hi Li, I tested the updated qemu-kvm package on the system we were working with earlier when we filed the bug and it seems to have fixed the problem. Thanks, Henry
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: Cause: qemu-kvm buffer for USB control requests was too small for some devices (e.g. some USB cameras) when using USB passthrough. Consequence: some devices made qemu-kvm show a message like: "'husb: ctrl buffer too small (3273 > 2048)'" Fix: increased buffer for USB control requests from 2048 bytes to 8192 bytes. Consequence: some devices that didn't work using USB passthrough now work.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHSA-2011-0534.html