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[Qemu-devel] Re: [patch 2/2] support for UHCI suspend / remote wake up
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] Re: [patch 2/2] support for UHCI suspend / remote wake up |
Date: |
Wed, 01 Dec 2010 16:12:14 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100827 Red Hat/3.1.3-1.el6 Thunderbird/3.1.3 |
On 11/25/10 18:04, Marcelo Tosatti wrote:
This patch enables USB UHCI global suspend/resume feature. The OS will
stop the HC once all ports are suspended. If there is activity on the
port(s), an interrupt signalling remote wakeup will be triggered.
To enable autosuspend for the USB tablet on Linux guests:
echo auto> /sys/devices/pci0000:00/0000:00:01.2/usb1/1-1/power/level
Hmm, did you ever got this working sanely?
/me sees bus disconnects in the guest ...
port->ctrl&= ~(val& 0x000a);
+ port->ctrl&= ~(port->ctrl& 0x0040); /* clear port resume detected
*/
}
This chunk looks suspicious ...
I suspect the port suspend/resume emulation isn't complete.
/me goes debugging,
Gerd
- [Qemu-devel] Re: [patch 2/2] support for UHCI suspend / remote wake up,
Gerd Hoffmann <=