Hi,
On Thu, Jul 14, 2011 at 11:03 PM, Alan Stern st...@rowland.harvard.edu wrote:
More likely, the reset erases some device setting that uvcvideo
installed while binding. Evidently uvcvideo does not re-install the
setting during reset-resume; this is probably a bug in the driver.
Alan, you
On Fri, 15 Jul 2011, Ming Lei wrote:
Hi,
On Thu, Jul 14, 2011 at 11:03 PM, Alan Stern st...@rowland.harvard.edu
wrote:
More likely, the reset erases some device setting that uvcvideo
installed while binding. �Evidently uvcvideo does not re-install the
setting during reset-resume;
Hi,
On Fri, Jul 15, 2011 at 10:27 PM, Alan Stern st...@rowland.harvard.edu wrote:
This is fine with me. However, it is strange that the Set-Interface
request is necessary. After being reset, the device should
automatically be in altsetting 0 for all interfaces.
For uvc devices, seems it is
On Fri, 15 Jul 2011, Ming Lei wrote:
Hi,
On Fri, Jul 15, 2011 at 10:27 PM, Alan Stern st...@rowland.harvard.edu
wrote:
This is fine with me. �However, it is strange that the Set-Interface
request is necessary. �After being reset, the device should
automatically be in altsetting 0
Hi,
On Wed, Jul 13, 2011 at 11:59 PM, Alan Stern st...@rowland.harvard.edu wrote:
On Wed, 13 Jul 2011, Ming Lei wrote:
Almost same.
Come on. Almost same means they are different. That difference is
clearly the important thing you need to track down.
I didn't say entirely same because we
On Thu, 14 Jul 2011, Ming Lei wrote:
Hi,
On Wed, Jul 13, 2011 at 11:59 PM, Alan Stern st...@rowland.harvard.edu
wrote:
On Wed, 13 Jul 2011, Ming Lei wrote:
Almost same.
Come on. �Almost same means they are different. �That difference is
clearly the important thing you need to
Hi,
On Thu, Jul 14, 2011 at 11:03 PM, Alan Stern st...@rowland.harvard.edu wrote:
All right; this tends to confirm your guess that the BIOS messes up the
device by resetting it during system resume.
Yes. BIOS messes the device first, then usbcore has to reset the device
at the end of resume,
Hi,
On Tue, Jul 12, 2011 at 11:44 PM, Alan Stern st...@rowland.harvard.edu wrote:
On Tue, 12 Jul 2011, Ming Lei wrote:
Hi Laurent,
After resume from sleep, all the ISO packets from camera are like below:
880122d9f400 3527230728 S Zi:1:004:1 -115:1:2568 32 -18:0:1600
-18:1600:1600
Hi,
On Tue, Jul 12, 2011 at 11:44 PM, Alan Stern st...@rowland.harvard.edu wrote:
Maybe this device needs a USB_QUIRK_RESET_RESUME entry in quirks.c.
RESET_RESUME quirk makes things worse, now stream data is not received from
the camera at all even in resume from runtime suspend case. So the
On Tuesday 12 July 2011 03:21:05 Ming Lei wrote:
On Mon, Jul 11, 2011 at 6:44 PM, Laurent Pinchart wrote:
That's unfortunately not acceptable as-is. If two cameras are connected
to the system, and only one of them doesn't support suspend/resume, the
other will be affected by your patch.
Hi,
On Wed, Jul 13, 2011 at 4:38 PM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
They can still work, but not optimally, as they will be reset instead of
suspended/resumed. That's not acceptable.
If the reset you mentioned is usb bus reset signal, I think unbindbind
will not
Am Mittwoch, 13. Juli 2011, 10:51:11 schrieb Ming Lei:
Hi,
On Wed, Jul 13, 2011 at 4:38 PM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
They can still work, but not optimally, as they will be reset instead of
suspended/resumed. That's not acceptable.
If the reset you
On Wednesday 13 July 2011 10:51:11 Ming Lei wrote:
On Wed, Jul 13, 2011 at 4:38 PM, Laurent Pinchart wrote:
They can still work, but not optimally, as they will be reset instead of
suspended/resumed. That's not acceptable.
If the reset you mentioned is usb bus reset signal, I think
Hi,
On Wed, Jul 13, 2011 at 4:59 PM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
Sorry, I haven't been clear. If you remove the suspend/resume handlers from
the driver, the USB core will unbind and rebind the driver instead of
suspending/resuming the device properly. As this
On Wed, 13 Jul 2011, Ming Lei wrote:
Hi,
On Tue, Jul 12, 2011 at 11:44 PM, Alan Stern st...@rowland.harvard.edu
wrote:
On Tue, 12 Jul 2011, Ming Lei wrote:
Hi Laurent,
After resume from sleep, �all the ISO packets from camera are like below:
880122d9f400 3527230728 S
Hi,
On Wed, Jul 13, 2011 at 11:20 PM, Alan Stern st...@rowland.harvard.edu wrote:
Why should system suspend be different from runtime suspend? Have you
This is also my puzzle, :-)
compared usbmon traces for the two types of suspend?
Almost same. If I add USB_QUIRK_RESET_RESUME quirk for
On Wed, 13 Jul 2011, Ming Lei wrote:
Hi,
On Wed, Jul 13, 2011 at 11:20 PM, Alan Stern st...@rowland.harvard.edu
wrote:
Why should system suspend be different from runtime suspend? �Have you
This is also my puzzle, :-)
compared usbmon traces for the two types of suspend?
Almost
Hi Laurent,
After resume from sleep, all the ISO packets from camera are like below:
880122d9f400 3527230728 S Zi:1:004:1 -115:1:2568 32 -18:0:1600
-18:1600:1600 -18:3200:1600 -18:4800:1600 -18:6400:1600 51200
880122d9d400 3527234708 C Zi:1:004:1 0:1:2600:0 32 0:0:12
0:1600:12
On Tue, 12 Jul 2011, Ming Lei wrote:
Hi Laurent,
After resume from sleep, all the ISO packets from camera are like below:
880122d9f400 3527230728 S Zi:1:004:1 -115:1:2568 32 -18:0:1600
-18:1600:1600 -18:3200:1600 -18:4800:1600 -18:6400:1600 51200
880122d9d400 3527234708 C
Hi,
On Monday 11 July 2011 11:48:11 Ming Lei wrote:
From 989d894a2af7ceadf2574f455d9e68779f4ae674 Mon Sep 17 00:00:00 2001
From: Ming Lei ming@canonical.com
Date: Mon, 11 Jul 2011 17:04:31 +0800
Subject: [PATCH] uvcvideo: add fix suspend/resume quirk for Microdia camera
We found this
Hello.
On 11-07-2011 13:48, Ming Lei wrote:
From 989d894a2af7ceadf2574f455d9e68779f4ae674 Mon Sep 17 00:00:00 2001
From: Ming Leiming@canonical.com
Date: Mon, 11 Jul 2011 17:04:31 +0800
Subject: [PATCH] uvcvideo: add fix suspend/resume quirk for Microdia camera
Please omit this
Hi,
Thanks for your reply.
On Mon, Jul 11, 2011 at 6:44 PM, Laurent Pinchart
laurent.pinch...@ideasonboard.com wrote:
That's unfortunately not acceptable as-is. If two cameras are connected to the
system, and only one of them doesn't support suspend/resume, the other will be
affected by your
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