Lonnie, Thank you so much for write the patch for me! It works well with Fedora Core 4. Since it added UHCI suspend/resume support, so I guess it should also work with Windows XP :-)
Thanks Xiaoyang -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lonnie Mendez Sent: 2007年2月15日 22:49 To: qemu-devel@nongnu.org Subject: RE: [Qemu-devel] USB storage cannot be recognized on guest Linuxdomain? On Thu, 2007-02-15 at 15:44 +0800, Yu, Xiaoyang wrote: > Hi Lonnie, > > Thanks a lot for the information. > > In our use case, we do not know the USB disk information before it is plugged > by customer, so we cannot start qemu with -usbdevice. > > For Linux, reload the uhci_hcd driver works. If we use this solution in our > use case, then we need to issue an interrupt (maybe by pic_set_irq_new?) to > the guest OS when QEMU detect a USB device is attached, and then the guest OS > will reload the uhci_hcd driver. Is that right? Currently there is something > wrong with the list archive server, so I haven't search out any example code > from it :-( > > I found that there is a patch to add the UHCI suspend/resume support in the > archive posted by you, but it cannot be applied to QEMU-DM 0.8.2 directly: > http://lists.gnu.org/archive/html/qemu-devel/2006-04/msg00576.html > > I wonder why there is no official UHCI suspend/resume support in QEMU. To > reload the uhci_hcd driver seems to be only a work around. Sometimes it even > cause kernel oops. > > I also wonder why the kernel 2.6.11-1.1369_FC4 can recognize USB storage > without UHCI suspend/resume support. The attached patch is enough to have a device on linux recognized after usb_add. However, the device must be attached to the uhci controller's root hub. If a device is attached to an emulated usb hub device it will not be detected. _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
