The patch works well.
Thank you all
On Thursday 07 December 2006 14:03, Alan Stern wrote:
> On Thu, 7 Dec 2006, Robert Dyck wrote:
> > I recently introduced 2.6.19 on one of my machines. A change made in
> > uhci-hcd.c is causing a problem for me. I had previously become aware of
> > an incompatibility between my web cam ( with microphone ) and KDE kmix.
> > When the camera is disconnected kmix appears to go into a loop and the
> > CPU cycles at 100%. This is a minor inconvenience because it is easily
> > avoided but now when I suspend and resume it elicits the same response as
> > a disconnect. I have to kill kmix and restart it.
>
> This sounds like a problem with kmix, not a problem with uhci-hcd. Have
> you reported it to the people responsible for that program?
>
> > The change to uhci-hcd.c targets the ASUS A7V8X motherboard. My A7V8X-X
> > has not exhibited the behaviour that the patch was meant to address.
> > Perhaps we can also assume that the problem has been corrected in the -MX
> > and -MX SE boards as well.
> >
> > On my system I made a small change that works for me. I changed
> > DMI_MATCH(DMI_BOARD_NAME, "A7V8X") to
> > DMI_MATCH(DMI_BOARD_NAME, "A7V8X ")
> > Notice the space after A7V8X.
> >
> > I hope this information is helpful.
> > Rob Dyck
>
> In fact I don't even have any real evidence that the original problem
> exists on all A7V8X motherboards; it might exist only on the one board
> owned by Tim, the original reporter.
>
> Are you sure that your change will work? I suspect the string you need to
> match against is "A7V8X" with no space at the end. This would mean your
> change will break the original code.
>
> How about the patch below instead? Tim, can you confirm that your system
> is okay with it?
>
> Alan Stern
>
>
>
> Index: usb-2.6/drivers/usb/host/uhci-hcd.c
> ===================================================================
> --- usb-2.6.orig/drivers/usb/host/uhci-hcd.c
> +++ usb-2.6/drivers/usb/host/uhci-hcd.c
> @@ -209,24 +209,16 @@ static int resume_detect_interrupts_are_
>
> static int remote_wakeup_is_broken(struct uhci_hcd *uhci)
> {
> - static struct dmi_system_id broken_wakeup_table[] = {
> - {
> - .ident = "Asus A7V8X",
> - .matches = {
> - DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK"),
> - DMI_MATCH(DMI_BOARD_NAME, "A7V8X"),
> - DMI_MATCH(DMI_BOARD_VERSION, "REV 1.xx"),
> - }
> - },
> - { }
> - };
> int port;
> + char *sys_info;
> + static char bad_Asus_board[] = "A7V8X";
>
> /* One of Asus's motherboards has a bug which causes it to
> * wake up immediately from suspend-to-RAM if any of the ports
> * are connected. In such cases we will not set EGSM.
> */
> - if (dmi_check_system(broken_wakeup_table)) {
> + sys_info = dmi_get_system_info(DMI_BOARD_NAME);
> + if (sys_info && !strcmp(sys_info, bad_Asus_board)) {
> for (port = 0; port < uhci->rh_numports; ++port) {
> if (inw(uhci->io_addr + USBPORTSC1 + port * 2) &
> USBPORTSC_CCS)
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