did you already try David Brownell's patch??
According to him, this could be an sleep time error!
Below, Dave's patch:
Tweak some early enumeration code paths:
- After a set_address() error, reset the port. Failures in that
particular
protocol request leave the device's address indeterminate.
- Let devices settle longer after successful SET_ADDRESS
EXPERIMENTAL ...
Index: g26/drivers/usb/core/hub.c
===================================================================
--- g26.orig/drivers/usb/core/hub.c 2006-11-06 13:08:45.000000000
-0800
+++ g26/drivers/usb/core/hub.c 2006-11-06 14:13:55.000000000 -0800
@@ -2010,6 +2010,8 @@ static int hub_set_address(struct usb_de
if (retval == 0) {
usb_set_device_state(udev, USB_STATE_ADDRESS);
ep0_reinit(udev);
+ /* allow HCD and peripheral time to settle */
+ msleep(40);
}
return retval;
}
@@ -2195,24 +2197,27 @@ hub_port_init (struct usb_hub *hub, stru
#undef GET_DESCRIPTOR_BUFSIZE
}
+ /* after set_address faults it's not clear what the
device's
+ * address will be. reset and be sure.
+ *
+ * REVISIT peripherals could trigger erroneous faults...
+ */
for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
retval = hub_set_address(udev);
if (retval >= 0)
break;
- msleep(200);
+ (void) hub_port_reset(hub, port1, udev, delay);
}
if (retval < 0) {
dev_err(&udev->dev,
"device not accepting address %d, error
%d\n",
udev->devnum, retval);
- goto fail;
+ continue;
}
-
+
/* cope with hardware quirkiness:
- * - let SET_ADDRESS settle, some device hardware wants
it
* - read ep0 maxpacket even for high and low speed,
- */
- msleep(10);
+ */
if (USE_NEW_SCHEME(retry_counter))
break;
On Thu, 2006-11-30 at 11:05 -0600, ext Larry Fenske XX (BO/EUS) wrote:
> I turn on the options suggested by Felipe Balbi (CONFIG_PREEMPT and
> CONFIG_USB_DEBUG), along with applying David Brownell's patch and didn't
> get much more in /var/log/messages:
>
> Nov 30 09:57:12 usboc0203 kernel: [61382.237911] usb 5-1: new full speed
> USB device using uhci_hcd and address 10
> Nov 30 09:57:13 usboc0203 kernel: [61382.357608] usb 5-1: device
> descriptor read/64, error -71
> Nov 30 09:57:13 usboc0203 kernel: [61382.581016] usb 5-1: device
> descriptor read/64, error -71
> Nov 30 09:57:13 usboc0203 kernel: [61382.796455] usb 5-1: new full speed
> USB device using uhci_hcd and address 11
> Nov 30 09:57:13 usboc0203 kernel: [61382.916151] usb 5-1: device
> descriptor read/64, error -71
> Nov 30 09:57:13 usboc0203 kernel: [61383.139558] usb 5-1: device
> descriptor read/64, error -71
> Nov 30 09:57:14 usboc0203 kernel: [61383.355007] usb 5-1: new full speed
> USB device using uhci_hcd and address 12
> Nov 30 09:57:14 usboc0203 kernel: [61383.578414] usb 5-1: device not
> accepting address 12, error -71
> Nov 30 09:57:14 usboc0203 kernel: [61383.905561] usb 5-1: device not
> accepting address 12, error -71
> Nov 30 09:57:14 usboc0203 kernel: [61384.121014] usb 5-1: new full speed
> USB device using uhci_hcd and address 13
> Nov 30 09:57:15 usboc0203 kernel: [61384.344425] usb 5-1: device not
> accepting address 13, error -71
> Nov 30 09:57:15 usboc0203 kernel: [61384.671563] usb 5-1: device not
> accepting address 13, error -71
>
> If I leave the device plugged in after these errors, I can never access
> it. If I unplug and plug it in again, then sometimes it will connect.
> The successes and failures seem to come in runs, i.e. the chance of
> success or failure is influenced by a previous success or failure.
>
> Is there any other debugging that I can turn on to get more information
> from the driver?
>
> Thanks,
> - Larry Fenske
>
> -----Original Message-----
> From: Felipe Balbi [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, November 29, 2006 11:59
> To: Larry Fenske XX (BO/EUS)
> Cc: Oliver Neukum; [email protected]
> Subject: Re: [linux-usb-devel] Error -71 connecting IDEN phone
>
> * PGP Signed by an unknown key: 11/29/2006 at 07:58:59 PM
>
> ext Larry Fenske XX (BO/EUS) wrote:
> > Yes, other devices work. I tried a USB flash drive (a.k.a. thumb
> drive). It works fine in both USB ports that I tried it in. I can read
> the filesystem on it.
> >
> > - Larry
> >
> > -----Original Message-----
> > From: Oliver Neukum [mailto:[EMAIL PROTECTED]
> > Sent: Wednesday, November 29, 2006 2:49 AM
> > To: [email protected]
> > Cc: Larry Fenske XX (BO/EUS)
> > Subject: Re: [linux-usb-devel] Error -71 connecting IDEN phone
> >
> > Am Dienstag, 28. November 2006 23:10 schrieb Larry Fenske XX (BO/EUS):
> >> I am attempting to connect a Motorola IDEN phone to a Linux box.
> Most
> >> of the time I get an error -71 in /var/log/messages. Here are six
> failed
> >> attempts:
> >
> As define in include/linux/asm-generic/errno.h the error -71 is a
> Protocol Error...
> As we can see from kernel messages:
>
> > usb 5-1: new full speed USB device using address 2
> > usb 5-1: device not accepting address 2, error -71
>
> The USB Host is not being able to set a device address...
>
> Could you please set CONFIG_PREEMPT and CONFIG_USB_DEBUG on the HOST
> side... and send more verbose messages??
>
> Another thing: Can you access the device anytime later?? If after some
> error messages you're able to access the device it could be some
> device-specific config...
>
>
>
> > Do any other USB devices work?
> >
> > Regards
> > Oliver
> >
> >
> ------------------------------------------------------------------------
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>
> --
> Best Regards,
>
> Felipe Balbi
> [EMAIL PROTECTED]
> OSMRC - INdT
>
> * Unknown Key
> * 0xABA10B64 (L)
>
--
Best Regards,
Felipe Balbi
[EMAIL PROTECTED]
OSMRC - INdT
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