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[Bug 1096714] Re: qemu 1.3.0: usb devices shouldn't have same vendor/pro
From: |
Thomas Huth |
Subject: |
[Bug 1096714] Re: qemu 1.3.0: usb devices shouldn't have same vendor/product ID and same serial |
Date: |
Mon, 03 May 2021 11:27:03 -0000 |
This is an automated cleanup. This bug report has been moved to QEMU's
new bug tracker on gitlab.com and thus gets marked as 'expired' now.
Please continue with the discussion here:
https://gitlab.com/qemu-project/qemu/-/issues/92
** Changed in: qemu
Status: New => Expired
** Bug watch added: gitlab.com/qemu-project/qemu/-/issues #92
https://gitlab.com/qemu-project/qemu/-/issues/92
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https://bugs.launchpad.net/bugs/1096714
Title:
qemu 1.3.0: usb devices shouldn't have same vendor/product ID and same
serial
Status in QEMU:
Expired
Bug description:
Boot Windows XP with
./qemu-system-i386 -device pci-ohci -device usb-tablet
and then with
./qemu-system-i386 -device pci-ohci -device usb-kbd
and you will notice, that the usb keyboard is not detected. In fact,
Windows XP detects the usb tablet and loads the driver for the tablet
instead of the driver for the keyboard.
The problem seems to be, that vendor and product ID and even the
seriel of both the usb tablet and the usb keyboard are the same as an
lsusb reveiles. Hence, Windows XP doesn't detect when you replace the
tablet by a keyboard and vice versa. I didn't check other USB devices,
but it seems a bad idea to me to have devices with the same
vendor/product Id. I'm not aware, whether it is sufficient to change
the seriel numbers of the devices.
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