On Thu, 22 Dec 2005 09:38:29 -0500 (EST)
Alan Stern <[EMAIL PROTECTED]> wrote:
> On Wed, 21 Dec 2005, Stephen Hemminger wrote:
>
> > My new UPS Belkin F6H375-USB is not correctly picked up by linux
> > USB (2.6.15-rc6). The machine is AMD x86_64. It doesn't seem to work
> > with 2.6.14 either, haven't gone back older than that.
> >
> > dmesg
> > usb 2-2: new full speed USB device using uhci_hcd and address 5
> > usb 2-2: khubd timed out on ep0in len=0/64
> > usb 2-2: khubd timed out on ep0in len=0/64
> > usb 2-2: khubd timed out on ep0in len=0/64
> > usb 2-2: device descriptor read/64, error -110
>
> Can you try applying this diagnostic patch? It should help tell whether
> the problem is in the UPS or in uhci-hcd.
>
> When you run the test, don't plug in any USB devices other than the UPS.
The machine has a external hub with USB keyboard and mouse.
>
> Index: linux-2.6.15-rc5/drivers/usb/host/uhci-q.c
> ===================================================================
> --- linux-2.6.15-rc5.orig/drivers/usb/host/uhci-q.c
> +++ linux-2.6.15-rc5/drivers/usb/host/uhci-q.c
> @@ -1372,6 +1372,17 @@ static int uhci_urb_dequeue(struct usb_h
> goto done;
> list_del_init(&urbp->urb_list);
>
> + {
> + static int cnt;
> +
> + if (errbuf && cnt < 2) {
> + ++cnt;
> + uhci_show_qh(urbp->qh, errbuf, ERRBUF_LEN, 0);
> + printk(KERN_DEBUG "URB unlink:\n");
> + lprintk(errbuf);
> + }
> + }
> +
> if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS)
> unlink_isochronous_tds(uhci, urb);
> uhci_unlink_generic(uhci, urb);
URB unlink:
[ffff81003e752300] link (3e7521c2) element (3c8cc050)
0: [ffff81003c8cc050] link (00000001) e3 LS IOC Active Length=0
MaxLen=3 DT0 EndPt=1 Dev=3, PID=69(IN) (buf=3c956000)
URB unlink:
[ffff81003e752300] link (3e7521c2) element (3c8cc050)
0: [ffff81003c8cc050] link (00000001) e3 LS IOC Active Length=0
MaxLen=3 DT0 EndPt=1 Dev=3, PID=69(IN) (buf=3c956000)
hub 1-0:1.0: state 5 ports 8 chg 0000 evt 0004
ehci_hcd 0000:00:10.4: GetStatus port 2 status 001803 POWER sig=j CSC
CONNECT hub 1-0:1.0: port 2, status 0501, change 0001, 480 Mb/s
hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x501
ehci_hcd 0000:00:10.4: GetStatus port 2 status 001402 POWER sig=k CSC
hub 1-0:1.0: state 5 ports 8 chg 0000 evt 0004
ehci_hcd 0000:00:10.4: GetStatus port 2 status 001803 POWER sig=j CSC
CONNECT hub 1-0:1.0: port 2, status 0501, change 0001, 480 Mb/s
hub 1-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x501
ehci_hcd 0000:00:10.4: port 2 low speed --> companion
ehci_hcd 0000:00:10.4: GetStatus port 2 status 003802 POWER OWNER sig=j
CSC hub 2-0:1.0: state 5 ports 2 chg 0000 evt 0004
uhci_hcd 0000:00:10.0: port 2 portsc 0193,00
hub 2-0:1.0: port 2, status 0301, change 0001, 1.5 Mb/s
hub 2-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x301
usb 2-2: new low speed USB device using uhci_hcd and address 5
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: device descriptor read/64, error -110
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: device descriptor read/64, error -110
usb 2-2: new low speed USB device using uhci_hcd and address 6
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: device descriptor read/64, error -110
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: khubd timed out on ep0in len=0/64
usb 2-2: device descriptor read/64, error -110
usb 2-2: new low speed USB device using uhci_hcd and address 7
usb 2-2: khubd timed out on ep0out len=0/0
usb 2-2: khubd timed out on ep0out len=0/0
usb 2-2: device not accepting address 7, error -110
usb 2-2: new low speed USB device using uhci_hcd and address 8
usb 2-2: khubd timed out on ep0out len=0/0
usb 2-2: khubd timed out on ep0out len=0/0
usb 2-2: device not accepting address 8, error -110
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