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Diffstat (limited to 'results/scraper/launchpad-without-comments/1689003')
| -rw-r--r-- | results/scraper/launchpad-without-comments/1689003 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1689003 b/results/scraper/launchpad-without-comments/1689003 new file mode 100644 index 00000000..59f8a145 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1689003 @@ -0,0 +1,13 @@ +USB passthrough should not fail if SET CONFIGURATION fails + +QEMU's USB passthrough was not working for my new smartphone. + +While analyzing the problem, I found out that a SET CONFIGURATION Request was NACKed by the USB device (probably because a SET CONFIGURATION request was already sent from the host to the device). + +So I wrote a simple program to fake a successful call to libusb_set_configuration and did an LD_PRELOAD on this program before starting qemu, and it worked. + +Looking at QEMU's code in host-libusb.c, I can see that QEMU does not try to claim the interface if its call to libusb_set_configuration fails. + +I think QEMU should try to claim the device anyway even if libusb_set_configuration fails. + +I did my tests against QEMU 2.6.2, but as I can see from the source code, this problem should happen on all versions. \ No newline at end of file |