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Diffstat (limited to 'results/classifier/deepseek-2-tmp/output/device/1550743')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/output/device/1550743 | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/results/classifier/deepseek-2-tmp/output/device/1550743 b/results/classifier/deepseek-2-tmp/output/device/1550743 deleted file mode 100644 index c2d819b4..00000000 --- a/results/classifier/deepseek-2-tmp/output/device/1550743 +++ /dev/null @@ -1,27 +0,0 @@ - -connect low speed host devices to qemu ehci does not work - -$ qemu-system-i386 -hda my_x86.img -device ich9-usb-ehci1,id=ehci -device usb-host,vendorid=0x045e,productid=0x071d -serial stdio -qemu-system-i386: Warning: speed mismatch trying to attach usb device "Microsoft? 2.4GHz Transceiver V" ( speed) to bus "ehci.0", port "1" (high speed) -qemu-system-i386: Warning: speed mismatch trying to attach usb device "Microsoft? 2.4GHz Transceiver V" ( speed) to bus "ehci.0", port "1" (high speed) -qemu-system-i386: Warning: speed mismatch trying to attach usb device "Microsoft? 2.4GHz Transceiver V" ( speed) to bus "ehci.0", port "1" (high speed) - -Which is obviously wrong. The ehci specification states: - -Low-speed device, release ownership of port <= Table 2-16. - -Table 2-6: - -Number of Companion Controller (N_CC). This field indicates the number of -companion controllers associated with this USB 2.0 host controller. -A zero in this field indicates there are no companion host controllers. Port-ownership -hand-off is not supported. Only high-speed devices are supported on the host controller -root ports. -A value larger than zero in this field indicates there are companion USB 1.1 host -controller(s). Port-ownership hand-offs are supported. High, Full- and Low-speed -devices are supported on the host controller root ports. - -Which is not longer true, as for example skylake and baytrail offers a dual usb stack of ehci and xhci. In that case, EHCI handles the low speed device as well. - -brgds, -Bert \ No newline at end of file |