Re: Error -71 on device descriptor read/all

[Jiri Kosina <jikos@jikos.cz>]

[ OK, it probably seems like a faulty hardware (controller or the device 
  itself), which is not able to run at high speed, but runs nicely on full 
  speed. Do you have a chance to try another high speed device in this 
  machine to check whether it works?

  Adding linux-usb-devel into CC , just in case, and leaving the full 
  original message below ]

On Tue, 19 Jun 2007, Renato S. Yamane wrote:

> Jiri Kosina wrote:
> > On Tue, 19 Jun 2007, Renato S. Yamane wrote:
> > > I see this in dmesg:
> > > usb 1-1: device descriptor read/all, error -71
> > 
> > Is this a USB 2.0 high-speed device?
> 
> lspci -v | grep 1d.7
> 00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family)
> USB2 EHCI Controller (rev 04) (prog-if 20 [EHCI])
> 
> My machine is a Laptop Toshiba M45-S355
> 
> > Don't you for example have USB extension cable too long to work on-high
> > speed?
> 
> My only USB device is a mouse (Microsoft Notebook Optical Mouse) without
> extension cable (I use original cable, with less than 3 feets).
> 
> > I guess the situation improves when you force USB 1.1 (i.e. rmmod ehci_hcd),
> > right?
> 
> #rmmode ehci_hcd
> #tail /var/log/messages
> 
> kernel: ehci_hcd 0000:00:1d.7: remove, state 4
> kernel: usb usb5: USB disconnect, address 1
> kernel: ehci_hcd 0000:00:1d.7: USB bus 5 deregistered
> kernel: ACPI: PCI interrupt for device 0000:00:1d.7 disabled
> 
> I don't see any error (-71).
> 
> #modprobe ehci_hcd
> #tail /var/log/messages
> kernel: ACPI: PCI Interrupt 0000:00:1d.7[A] -> Link [LNKH] -> GSI 10 (level,
> low) -> IRQ 10
> kernel: ehci_hcd 0000:00:1d.7: EHCI Host Controller
> kernel: ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
> kernel: ehci_hcd 0000:00:1d.7: debug port 1
> kernel: ehci_hcd 0000:00:1d.7: irq 10, io mem 0xf4000000
> kernel: ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 
> 2004
> kernel: usb usb5: configuration #1 chosen from 1 choice
> kernel: hub 5-0:1.0: USB hub found
> kernel: hub 5-0:1.0: 8 ports detected
> kernel: usb 1-1: USB disconnect, address 4
> kernel: usb 1-1: new low speed USB device using uhci_hcd and address 5
> kernel: usb 1-1: configuration #1 chosen from 1 choice
> kernel: input: Microsoft Microsoft 3-Button Mouse with IntelliEye? as 
> /class/input/input8
> kernel: input: USB HID v1.00 Mouse [Microsoft Microsoft 3-Button Mouse with
> IntelliEye?] on usb-0000:00:1d.0-1
> 
> This error is present only in dmesg, see below (line 8):
> 
> PCI: Setting latency timer of device 0000:00:1d.7 to 64
> ehci_hcd 0000:00:1d.7: EHCI Host Controller
> ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 5
> ehci_hcd 0000:00:1d.7: debug port 1
> PCI: cache line size of 32 is not supported by device 0000:00:1d.7
> ehci_hcd 0000:00:1d.7: irq 10, io mem 0xf4000000
> ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
> usb 1-1: device descriptor read/all, error -71
> usb usb5: configuration #1 chosen from 1 choice
> hub 5-0:1.0: USB hub found
> hub 5-0:1.0: 8 ports detected
> Clocksource tsc unstable (delta = -194969704 ns)
> ACPI: PCI Interrupt Link [LNKG] enabled at IRQ 6
> PCI: setting IRQ 6 as level-triggered
> 
> Best regards,
> Renato
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-- 
Jiri Kosina
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