Re: [Linux-uvc-devel] sanyo cg10

2010-11-19 Thread Riccardo Magliocchetti 

Il 19/11/2010 01:28, Laurent Pinchart ha scritto:

Hi Riccardo,


Hi Laurent,


On Monday 01 November 2010 12:01:50 Riccardo Magliocchetti wrote:

Il 30/10/2010 20:58, Laurent Pinchart ha scritto:

On Friday 22 October 2010 21:19:22 Riccardo Magliocchetti wrote:

Il 20/10/2010 01:48, Laurent Pinchart ha scritto:

well, i've found that it's working fine out the box, it's actually a
call to luvcview -L -d /dev/video1 that breaks it.


I'm very surprised by that. luvcview -L doesn't modify the hardware
state. Maybe only the first stream attempt succeeds ? Could you try
running luvcview -d /dev/Video1 multiple times in a row ?


You are right, the first time luvcview -d /dev/video1 works fine, the
second it does not.


So the hardware probably crashes when the stream is stopped. Bad hardware :-(

This will be a bit hard to debug. We need to find out what makes the hardware
crash. It's probably a command send by the driver when stopping the stream, or
the lack of an expected command before restarting the stream.

The easiest way I can think of to try and debug the problem would be to
capture a USB trace when using the camera under Windows. Do you feel confident
enough to try that ?


Unfortunately I don't have a windows machine at hand, at work i have 
only mac os x machines. Are them any useful?


thanks,
riccardo
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Re: [Linux-uvc-devel] sanyo cg10

2010-11-19 Thread Laurent Pinchart 
Hi Riccardo,

On Friday 19 November 2010 09:07:40 Riccardo Magliocchetti wrote:
 Il 19/11/2010 01:28, Laurent Pinchart ha scritto:
  On Monday 01 November 2010 12:01:50 Riccardo Magliocchetti wrote:
  Il 30/10/2010 20:58, Laurent Pinchart ha scritto:
  On Friday 22 October 2010 21:19:22 Riccardo Magliocchetti wrote:
  Il 20/10/2010 01:48, Laurent Pinchart ha scritto:
  
  well, i've found that it's working fine out the box, it's actually a
  call to luvcview -L -d /dev/video1 that breaks it.
  
  I'm very surprised by that. luvcview -L doesn't modify the hardware
  state. Maybe only the first stream attempt succeeds ? Could you try
  running luvcview -d /dev/Video1 multiple times in a row ?
  
  You are right, the first time luvcview -d /dev/video1 works fine, the
  second it does not.
  
  So the hardware probably crashes when the stream is stopped. Bad hardware
  :-(
  
  This will be a bit hard to debug. We need to find out what makes the
  hardware crash. It's probably a command send by the driver when stopping
  the stream, or the lack of an expected command before restarting the
  stream.
  
  The easiest way I can think of to try and debug the problem would be to
  capture a USB trace when using the camera under Windows. Do you feel
  confident enough to try that ?
 
 Unfortunately I don't have a windows machine at hand, at work i have
 only mac os x machines.

It's becoming increasingly difficult to find Windows boxes ;-)

 Are them any useful?

If the camcorder works correctly under Mac OS X, yes. I don't know of any USB 
sniffer for Mac though.

-- 
Regards,

Laurent Pinchart
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Re: [Linux-uvc-devel] sanyo cg10

2010-11-18 Thread Laurent Pinchart 
Hi Riccardo,

On Monday 01 November 2010 12:01:50 Riccardo Magliocchetti wrote:
 Il 30/10/2010 20:58, Laurent Pinchart ha scritto:
  On Friday 22 October 2010 21:19:22 Riccardo Magliocchetti wrote:
  Il 20/10/2010 01:48, Laurent Pinchart ha scritto:
  On Thursday 14 October 2010 19:32:01 Riccardo Magliocchetti wrote:
  Hello,
  
  i have a sanyo cg10 camcorder, i've tried to connect it to my pc using
  it pc camera mode, it is recognized as uvc device but it is not
  working. With vlc i see a green background, with luvcview:
  
  $ luvcview -d /dev/video1
  luvcview 0.2.6
  
  SDL information:
   Video driver: x11
   A window manager is available
  
  Device information:
   Device path:  /dev/video1
  
  Stream settings:
   Frame format: MJPG
  
  Unable to set format: Input/output error
  
  Init v4L2 failed !! exit fatal
  
  Do you get any additional message printed to the kernel log when this
  happens ? If not, please raise the driver trace level with
  
  echo 0x   /sys/modules/uvcvideo/parameters/trace
  
  and run luvcview again. The driver should then print additional debug
  information.
  
  well, i've found that it's working fine out the box, it's actually a
  call to luvcview -L -d /dev/video1 that breaks it.
  
  I'm very surprised by that. luvcview -L doesn't modify the hardware
  state. Maybe only the first stream attempt succeeds ? Could you try
  running luvcview -d /dev/Video1 multiple times in a row ?
 
 You are right, the first time luvcview -d /dev/video1 works fine, the
 second it does not.

So the hardware probably crashes when the stream is stopped. Bad hardware :-(

This will be a bit hard to debug. We need to find out what makes the hardware 
crash. It's probably a command send by the driver when stopping the stream, or 
the lack of an expected command before restarting the stream.

The easiest way I can think of to try and debug the problem would be to 
capture a USB trace when using the camera under Windows. Do you feel confident 
enough to try that ?

-- 
Regards,

Laurent Pinchart
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Re: [Linux-uvc-devel] sanyo cg10

2010-11-01 Thread Riccardo Magliocchetti 

Il 30/10/2010 20:58, Laurent Pinchart ha scritto:

Hi Riccardo,


Hi Laurent,


On Friday 22 October 2010 21:19:22 Riccardo Magliocchetti wrote:

Il 20/10/2010 01:48, Laurent Pinchart ha scritto:

On Thursday 14 October 2010 19:32:01 Riccardo Magliocchetti wrote:

Hello,

i have a sanyo cg10 camcorder, i've tried to connect it to my pc using
it pc camera mode, it is recognized as uvc device but it is not
working. With vlc i see a green background, with luvcview:

$ luvcview -d /dev/video1
luvcview 0.2.6

SDL information:
 Video driver: x11
 A window manager is available

Device information:
 Device path:  /dev/video1

Stream settings:
 Frame format: MJPG

Unable to set format: Input/output error

Init v4L2 failed !! exit fatal


Do you get any additional message printed to the kernel log when this
happens ? If not, please raise the driver trace level with

echo 0x   /sys/modules/uvcvideo/parameters/trace

and run luvcview again. The driver should then print additional debug
information.


well, i've found that it's working fine out the box, it's actually a
call to luvcview -L -d /dev/video1 that breaks it.


I'm very surprised by that. luvcview -L doesn't modify the hardware state.
Maybe only the first stream attempt succeeds ? Could you try running luvcview
-d /dev/Video1 multiple times in a row ?


You are right, the first time luvcview -d /dev/video1 works fine, the 
second it does not.


riccardo
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[Linux-uvc-devel] sanyo cg10

2010-10-19 Thread Riccardo Magliocchetti 

[resending after subscribing]

Hello,

i have a sanyo cg10 camcorder, i've tried to connect it to my pc using 
it pc camera mode, it is recognized as uvc device but it is not 
working. With vlc i see a green background, with luvcview:


$ luvcview -d /dev/video1
luvcview 0.2.6

SDL information:
   Video driver: x11
   A window manager is available
Device information:
   Device path:  /dev/video1
Stream settings:
   Frame format: MJPG
Unable to set format: Input/output error
  Init v4L2 failed !! exit fatal

dmesg shows:

[ 2542.516177] usb 2-2: new high speed USB device using ehci_hcd and 
address 4

[ 2542.876873] usb 2-2: New USB device found, idVendor=0474, idProduct=02e0
[ 2542.876890] usb 2-2: New USB device strings: Mfr=1, Product=2, 
SerialNumber=3

[ 2542.876899] usb 2-2: Product: SANYO Digital Camera
[ 2542.876906] usb 2-2: Manufacturer: SANYO
[ 2542.876912] usb 2-2: SerialNumber: V2057131
[ 2543.224991] uvcvideo: Found UVC 1.00 device SANYO Digital Camera 
(0474:02e0)


Attached lsusb -v output.

thanks,
riccardo


Bus 002 Device 003: ID 0474:02e0 Sanyo Electric Co., Ltd 
Device Descriptor:
  bLength18
  bDescriptorType 1
  bcdUSB   2.00
  bDeviceClass  239 Miscellaneous Device
  bDeviceSubClass 2 ?
  bDeviceProtocol 1 Interface Association
  bMaxPacketSize064
  idVendor   0x0474 Sanyo Electric Co., Ltd
  idProduct  0x02e0 
  bcdDevice1.00
  iManufacturer   1 
  iProduct2 
  iSerial 3 
  bNumConfigurations  1
  Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength  150
bNumInterfaces  2
bConfigurationValue 1
iConfiguration  0 
bmAttributes 0xc0
  Self Powered
MaxPower0mA
Interface Association:
  bLength 8
  bDescriptorType11
  bFirstInterface 0
  bInterfaceCount 2
  bFunctionClass 14 Video
  bFunctionSubClass   3 Video Interface Collection
  bFunctionProtocol   0 
  iFunction   2 
Interface Descriptor:
  bLength 9
  bDescriptorType 4
  bInterfaceNumber0
  bAlternateSetting   0
  bNumEndpoints   0
  bInterfaceClass14 Video
  bInterfaceSubClass  1 Video Control
  bInterfaceProtocol  0 
  iInterface  4 
  VideoControl Interface Descriptor:
bLength13
bDescriptorType36
bDescriptorSubtype  1 (HEADER)
bcdUVC   1.00
wTotalLength   39
dwClockFrequency0.001000MHz
bInCollection   1
baInterfaceNr( 0)   1
  VideoControl Interface Descriptor:
bLength17
bDescriptorType36
bDescriptorSubtype  2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType  0x0201 Camera Sensor
bAssocTerminal  2
iTerminal   0 
wObjectiveFocalLengthMin  0
wObjectiveFocalLengthMax  0
wOcularFocalLength0
bControlSize  2
bmControls   0x
  VideoControl Interface Descriptor:
bLength 9
bDescriptorType36
bDescriptorSubtype  3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType  0x0101 USB Streaming
bAssocTerminal  1
bSourceID   1
iTerminal   0 
Interface Descriptor:
  bLength 9
  bDescriptorType 4
  bInterfaceNumber1
  bAlternateSetting   0
  bNumEndpoints   1
  bInterfaceClass14 Video
  bInterfaceSubClass  2 Video Streaming
  bInterfaceProtocol  0 
  iInterface  5 
  VideoStreaming Interface Descriptor:
bLength14
bDescriptorType36
bDescriptorSubtype  1 (INPUT_HEADER)
bNumFormats 1
wTotalLength   69
bEndPointAddress  130
bmInfo  0
bTerminalLink   2
bStillCaptureMethod 0
bTriggerSupport 0
bTriggerUsage   0
bControlSize1
bmaControls( 0)11
  VideoStreaming Interface Descriptor:
bLength11
bDescriptorType36
bDescriptorSubtype  6 (FORMAT_MJPEG)
bFormatIndex1
bNumFrameDescriptors

Re: [Linux-uvc-devel] sanyo cg10

2010-10-19 Thread Laurent Pinchart 
Hi Riccardo,

On Thursday 14 October 2010 19:32:01 Riccardo Magliocchetti wrote:
 Hello,
 
 i have a sanyo cg10 camcorder, i've tried to connect it to my pc using
 it pc camera mode, it is recognized as uvc device but it is not
 working. With vlc i see a green background, with luvcview:
 
 $ luvcview -d /dev/video1
 luvcview 0.2.6
 
 SDL information:
Video driver: x11
A window manager is available
 Device information:
Device path:  /dev/video1
 Stream settings:
Frame format: MJPG
 Unable to set format: Input/output error
   Init v4L2 failed !! exit fatal

Do you get any additional message printed to the kernel log when this happens 
? If not, please raise the driver trace level with

echo 0x  /sys/modules/uvcvideo/parameters/trace

and run luvcview again. The driver should then print additional debug 
information.

 dmesg shows:
 
 [ 2542.516177] usb 2-2: new high speed USB device using ehci_hcd and
 address 4
 [ 2542.876873] usb 2-2: New USB device found, idVendor=0474, idProduct=02e0
 [ 2542.876890] usb 2-2: New USB device strings: Mfr=1, Product=2,
 SerialNumber=3
 [ 2542.876899] usb 2-2: Product: SANYO Digital Camera
 [ 2542.876906] usb 2-2: Manufacturer: SANYO
 [ 2542.876912] usb 2-2: SerialNumber: V2057131
 [ 2543.224991] uvcvideo: Found UVC 1.00 device SANYO Digital Camera
 (0474:02e0)
 
 Attached lsusb -v output.

Thanks for the report.

-- 
Regards,

Laurent Pinchart
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