Date: Fri, 3 Apr 2020 14:04:47 +0200 From: Marc Fonvieille <blackend@freebsd.org> To: freebsd-multimedia@freebsd.org Subject: OV511 based webcam and webcamd Message-ID: <20200403120447.GA2599@emphyrio.blackend.org>
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Hello,
I'm trying to resurrect an old Creative Webcam (model CT6840 OV511
based) I used to use in early 2000s with defunct graphics/vid. I'm
facing some problems.
I use FreeBSD 12.1-RELEASE-p3 with a GENERIC kernel.
# usbconfig
(snip)
ugen0.3: <vendor 0x05a9 product 0xa511> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (500mA)
It appears to be supported by the ov519(4) driver.
If I launch webcamd, I get:
# webcamd -d ugen0.3
Attached to ugen0.3[0]
Creating /dev/video0
Creating /dev/input/event4
So far, so good.
If I launch pwcview, a green window quickly appears
then I get an error and webcamd ends:
# pwcview
Webcam set to: 320x240 (sif) at 5 fps
libv4l2: error dequeuing buf: Device not configured
Error reading from webcam: Device not configured
And the kernel messages say:
ugen0.3: <vendor 0x05a9 product 0xa511> at usbus0 (disconnected)
I don't really know what to do, it seems that the webcam is
disconnected each time you try to access it.
For information, here's a detailled dump from usbconfig:
ugen0.3: <vendor 0x05a9 product 0xa511> at usbus0, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (500mA)
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0100
bDeviceClass = 0x0000 <Probed by interface class>
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0008
idVendor = 0x05a9
idProduct = 0xa511
bcdDevice = 0x0100
iManufacturer = 0x0000 <no string>
iProduct = 0x0000 <no string>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0001
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x0089
bNumInterfaces = 0x0001
bConfigurationValue = 0x0001
iConfiguration = 0x0000 <no string>
bmAttributes = 0x0080
bMaxPower = 0x00fa
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0000
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0001
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0021
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 2
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0002
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0081
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 3
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0003
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0101
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 4
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0004
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0181
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 5
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0005
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0201
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 6
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0006
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x0301
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
Interface 0 Alt 7
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0007
bNumEndpoints = 0x0001
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x0000
bInterfaceProtocol = 0x0000
iInterface = 0x0000 <no string>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0081 <IN>
bmAttributes = 0x0001 <ISOCHRONOUS>
wMaxPacketSize = 0x03c1
bInterval = 0x0001
bRefresh = 0x0000
bSynchAddress = 0x0000
--
Marc
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