Re: [Linux-uvc-devel] [PATCH] Re: uvcvideo: Finally fix Logitech Quickcam for Notebooks Pro
Hi Ondrej, On Friday 09 October 2009 08:32:06 Ondrej Zary wrote: On Friday 09 October 2009, Laurent Pinchart wrote: Hi Ondrej, On Wednesday 07 October 2009 14:59:40 Ondrej Zary wrote: On Tuesday 06 October 2009, Ondrej Zary wrote: Hello, I have a Logitech Quickcam for Notebooks Pro camera (046d:08c3) which just does not work even with kernel 2.6.31 and has never worked well before. On http://linux-uvc.berlios.de/, there are two problems listed. I want to really fix these two problems so the camera will just work after plugging in (and not disconnect). I started with problem no. 2 as this causes the camera not to work at all when plugged in: usb 5-2.4: new high speed USB device using ehci_hcd and address 7 usb 5-2.4: configuration #1 chosen from 1 choice uvcvideo: Found UVC 1.00 device unnamed (046d:08c3) uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). When I do modprobe snd_usb_audio, then rmmod snd_usb_audio and finally modprobe uvcvideo, it works. So it looks like snd_usb_audio does some initialization that allows uvcvideo to work. It didn't work at all I didn't have snd_usb_audio module compiled. What was the change that supposedly broke this in 2.6.22? I discovered that it's not related to usb audio at all. Doing rmmod uvcvideo and modprobe uvcvideo repeatedly succeeded after a couple of tries. Increasing UVC_CTRL_STREAMING_TIMEOUT to 3000 helped (2000 was not enough). Increase UVC_CTRL_STREAMING_TIMEOUT to fix initialization of Logitech Quickcam for Notebooks Pro. This fixes following error messages: uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). Signed-off-by: Ondrej Zary li...@rainbow-software.org --- linux-2.6.31-orig/drivers/media/video/uvc/uvcvideo.h 2009-09-10 00:13:59.0 +0200 +++ linux-2.6.31/drivers/media/video/uvc/uvcvideo.h 2009-10-07 13:47:27.0 +0200 @@ -304,7 +304,7 @@ #define UVC_MAX_STATUS_SIZE 16 #define UVC_CTRL_CONTROL_TIMEOUT 300 -#define UVC_CTRL_STREAMING_TIMEOUT 1000 +#define UVC_CTRL_STREAMING_TIMEOUT 3000 /* Devices quirks */ #define UVC_QUIRK_STATUS_INTERVAL0x0001 Thanks for the patch. I wonder if it will help other Logitech users. The UVC specification unfortunately doesn't give a time boundary for answering streaming requests, so that's up to the developers. I'm pretty sure we will find at least one webcam model that will require 3001ms at some point :-) I was thinking about adding a module parameter to set the streaming control timeout. I'm not sure what the default value should be though. What's your opinion on this ? If we decide to increase the default value, where should we stop ? I really don't know. Maybe only the first request is slow as the hardware needs some time to initialize? That's my guess as well. If someone knows what value is used by Windows or Mac OS X, that's probably the right choice as most devices are tested with them. I've committed a patch that turns the timeout value into a module parameter and asked Mauro to pull from my repository. The default timeout value has been increased to 3000ms. It seems the value used by the Windows driver is 5000ms. I have no information about what's done on Mac OS X. If it works with 3000ms lets keep it that way. I wouldn't be surprised if the 5000ms was some kind of rounded-up guessed value anyway :-) -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Linux-uvc-devel] [PATCH] Re: uvcvideo: Finally fix Logitech Quickcam for Notebooks Pro
On Friday 09 October 2009, Laurent Pinchart wrote: Hi Ondrej, On Wednesday 07 October 2009 14:59:40 Ondrej Zary wrote: On Tuesday 06 October 2009, Ondrej Zary wrote: Hello, I have a Logitech Quickcam for Notebooks Pro camera (046d:08c3) which just does not work even with kernel 2.6.31 and has never worked well before. On http://linux-uvc.berlios.de/, there are two problems listed. I want to really fix these two problems so the camera will just work after plugging in (and not disconnect). I started with problem no. 2 as this causes the camera not to work at all when plugged in: usb 5-2.4: new high speed USB device using ehci_hcd and address 7 usb 5-2.4: configuration #1 chosen from 1 choice uvcvideo: Found UVC 1.00 device unnamed (046d:08c3) uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). When I do modprobe snd_usb_audio, then rmmod snd_usb_audio and finally modprobe uvcvideo, it works. So it looks like snd_usb_audio does some initialization that allows uvcvideo to work. It didn't work at all I didn't have snd_usb_audio module compiled. What was the change that supposedly broke this in 2.6.22? I discovered that it's not related to usb audio at all. Doing rmmod uvcvideo and modprobe uvcvideo repeatedly succeeded after a couple of tries. Increasing UVC_CTRL_STREAMING_TIMEOUT to 3000 helped (2000 was not enough). Increase UVC_CTRL_STREAMING_TIMEOUT to fix initialization of Logitech Quickcam for Notebooks Pro. This fixes following error messages: uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). Signed-off-by: Ondrej Zary li...@rainbow-software.org --- linux-2.6.31-orig/drivers/media/video/uvc/uvcvideo.h2009-09-10 00:13:59.0 +0200 +++ linux-2.6.31/drivers/media/video/uvc/uvcvideo.h2009-10-07 13:47:27.0 +0200 @@ -304,7 +304,7 @@ #define UVC_MAX_STATUS_SIZE16 #define UVC_CTRL_CONTROL_TIMEOUT 300 -#define UVC_CTRL_STREAMING_TIMEOUT 1000 +#define UVC_CTRL_STREAMING_TIMEOUT 3000 /* Devices quirks */ #define UVC_QUIRK_STATUS_INTERVAL 0x0001 Thanks for the patch. I wonder if it will help other Logitech users. The UVC specification unfortunately doesn't give a time boundary for answering streaming requests, so that's up to the developers. I'm pretty sure we will find at least one webcam model that will require 3001ms at some point :-) I was thinking about adding a module parameter to set the streaming control timeout. I'm not sure what the default value should be though. What's your opinion on this ? If we decide to increase the default value, where should we stop ? I really don't know. Maybe only the first request is slow as the hardware needs some time to initialize? If someone knows what value is used by Windows or Mac OS X, that's probably the right choice as most devices are tested with them. -- Ondrej Zary -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Linux-uvc-devel] [PATCH] Re: uvcvideo: Finally fix Logitech Quickcam for Notebooks Pro
Hi Ondrej, On Wednesday 07 October 2009 14:59:40 Ondrej Zary wrote: On Tuesday 06 October 2009, Ondrej Zary wrote: Hello, I have a Logitech Quickcam for Notebooks Pro camera (046d:08c3) which just does not work even with kernel 2.6.31 and has never worked well before. On http://linux-uvc.berlios.de/, there are two problems listed. I want to really fix these two problems so the camera will just work after plugging in (and not disconnect). I started with problem no. 2 as this causes the camera not to work at all when plugged in: usb 5-2.4: new high speed USB device using ehci_hcd and address 7 usb 5-2.4: configuration #1 chosen from 1 choice uvcvideo: Found UVC 1.00 device unnamed (046d:08c3) uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). When I do modprobe snd_usb_audio, then rmmod snd_usb_audio and finally modprobe uvcvideo, it works. So it looks like snd_usb_audio does some initialization that allows uvcvideo to work. It didn't work at all I didn't have snd_usb_audio module compiled. What was the change that supposedly broke this in 2.6.22? I discovered that it's not related to usb audio at all. Doing rmmod uvcvideo and modprobe uvcvideo repeatedly succeeded after a couple of tries. Increasing UVC_CTRL_STREAMING_TIMEOUT to 3000 helped (2000 was not enough). Increase UVC_CTRL_STREAMING_TIMEOUT to fix initialization of Logitech Quickcam for Notebooks Pro. This fixes following error messages: uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). Signed-off-by: Ondrej Zary li...@rainbow-software.org --- linux-2.6.31-orig/drivers/media/video/uvc/uvcvideo.h 2009-09-10 00:13:59.0 +0200 +++ linux-2.6.31/drivers/media/video/uvc/uvcvideo.h 2009-10-07 13:47:27.0 +0200 @@ -304,7 +304,7 @@ #define UVC_MAX_STATUS_SIZE 16 #define UVC_CTRL_CONTROL_TIMEOUT 300 -#define UVC_CTRL_STREAMING_TIMEOUT 1000 +#define UVC_CTRL_STREAMING_TIMEOUT 3000 /* Devices quirks */ #define UVC_QUIRK_STATUS_INTERVAL0x0001 Thanks for the patch. I wonder if it will help other Logitech users. The UVC specification unfortunately doesn't give a time boundary for answering streaming requests, so that's up to the developers. I'm pretty sure we will find at least one webcam model that will require 3001ms at some point :-) I was thinking about adding a module parameter to set the streaming control timeout. I'm not sure what the default value should be though. What's your opinion on this ? If we decide to increase the default value, where should we stop ? -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Linux-uvc-devel] [PATCH] Re: uvcvideo: Finally fix Logitech Quickcam for Notebooks Pro
On Wednesday 07 October 2009, Gianluca Cecchi wrote: On Wed, Oct 7, 2009 at 2:59 PM, Ondrej Zary li...@rainbow-software.orgwrote: [snip] What was the change that supposedly broke this in 2.6.22? I discovered that it's not related to usb audio at all. Doing rmmod uvcvideo and modprobe uvcvideo repeatedly succeeded after a couple of tries. Increasing UVC_CTRL_STREAMING_TIMEOUT to 3000 helped (2000 was not enough). Increase UVC_CTRL_STREAMING_TIMEOUT to fix initialization of Logitech Quickcam for Notebooks Pro. This fixes following error messages: uvcvideo: UVC non compliance - GET_DEF(PROBE) not supported. Enabling workaround. uvcvideo: Failed to query (129) UVC probe control : -110 (exp. 26). uvcvideo: Failed to initialize the device (-5). Signed-off-by: Ondrej Zary li...@rainbow-software.org --- linux-2.6.31-orig/drivers/media/video/uvc/uvcvideo.h 2009-09-10 00:13:59.0 +0200 +++ linux-2.6.31/drivers/media/video/uvc/uvcvideo.h 2009-10-07 13:47:27.0 +0200 @@ -304,7 +304,7 @@ #define UVC_MAX_STATUS_SIZE16 #define UVC_CTRL_CONTROL_TIMEOUT 300 -#define UVC_CTRL_STREAMING_TIMEOUT 1000 +#define UVC_CTRL_STREAMING_TIMEOUT 3000 /* Devices quirks */ #define UVC_QUIRK_STATUS_INTERVAL 0x0001 -- Ondrej Zary Could this kind of fix also be useful in my case with Omnivision oem in Dell sp2208wfp monitor, in your opinion? See thread https://lists.berlios.de/pipermail/linux-uvc-devel/2008-February/003076.html incidentally at that time I was using Fedora 8 32bit with kernel 2.6.23.15-137.fc8 that indeed is post 2.6.22 I don't know - try it. My patch is not related to 2.6.22 and usb-audio at all. -- Ondrej Zary -- To unsubscribe from this list: send the line unsubscribe linux-media in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
