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[Qce-ga-discussion] qc-usb on 2.6.11.7 with v4l2
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From: Manuel S. <ma...@sa...> - 2005-04-24 19:21:37
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I 'm not sure, here's the right place to post it, so don't hesitate to
flame me.
I have compiled the 0.6.3 version of qc-usb with a 2.6.11.7
The webcam works fine with gqcam and vgrabbj. But the webcam is still
unusable with xawtv. It seems that the VIDIOC_QUERYCAP ioctl of v4l2
doesn't work. So now the question is: Is this implemented, or is there
a bug somewhere ?
With lsusb I get:
Bus 001 Device 002: ID 046d:0840 Logitech, Inc. QuickCam Express
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 255 Vendor Specific Subclass
bDeviceProtocol 255 Vendor Specific Protocol
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0x0840 QuickCam Express
bcdDevice 1.00
iManufacturer 0
iProduct 1
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 55
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x0000 1x 0 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 16
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 1
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 1
Transfer Type Isochronous
Synch Type None
Usage Type Data
wMaxPacketSize 0x03ff 1x 1023 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0001 1x 1 bytes
bInterval 16
In /proc/video/quickcam/video0 I have:
General driver status
Driver version : QuickCam USB 0.6.3 $Date: 2005/04/15 19:32:49 $
Kernel version : 2.6.11.7-littlekrobot.1
Device Id : 046D:0840
USB bus number : 1
Users : 1
Connected : Yes
Picture settings set by user
Brightness : 32768
Hue : 32768
Color : 32768
Contrast : 32768
Whiteness : 32768
Depth : 16
Palette : YUV422
Output window
Width : 360
Height : 288
Sensor
Type : HDCS-1000/1100
Manufacturer : Hewlett Packard
Maximum width : 360
Maximum height : 296
Current width : 360
Current height : 288
I2C command stream
Scheduled packets: 0
Packets on queue : 0
Isochronous data stream
Stream enabled : Yes
Transfer errors : 0
Frame buffering
Frames on queue : 0
Capturing : Yes
Waiting processes: 0
Automatic exposure control
Picture intensity: 125
Exposure setting : 4352
Gain setting : 16000
Delta value : 128
Control algorithm: Float
Default settings
Debug : 0x10
Keep settings : No
Settle max frames: 0
Subsampling : No
Compress : No
Frame skipping : 0
Image quality : 5
Adaptive : Yes
Equalize : No
User lookup-table: No
Retryerrors : Yes
Compatible 16x : No
Compatible DblBuf: No
Compatible ToRgb : No
With the debug activated, and qcset debug=errors, the launch of xawtv
Apr 24 21:25:22 localhost kernel: quickcam [ 4.259174]: ----------LOADING QUICKC
AM MODULE------------
Apr 24 21:25:22 localhost kernel: quickcam [ 4.259206]: struct quickcam size: 63
12
Apr 24 21:25:22 localhost kernel: quickcam: QuickCam USB camera found (driver ve
rsion QuickCam USB 0.6.3 $Date: 2005/04/15 19:32:49 $)
Apr 24 21:25:22 localhost kernel: quickcam: Kernel:2.6.11.7-littlekrobot.1 bus:1
class:FF subclass:FF vendor:046D product:0840
Apr 24 21:25:22 localhost kernel: quickcam [ 4.327504]: poisoning qc in qc_usb_i
nit
Apr 24 21:25:22 localhost kernel: quickcam: Sensor HDCS-1000/1100 detected
Apr 24 21:25:22 localhost kernel: quickcam: Registered device: /dev/video0
Apr 24 21:25:22 localhost kernel: usbcore: registered new driver quickcam
Apr 24 21:25:22 localhost kernel: Linux agpgart interface v0.100 (c) Dave Jones
Apr 24 21:25:22 localhost kernel: agpgart: Detected VIA Apollo ProMedia/PLE133Ta
chipset
Apr 24 21:25:22 localhost kernel: agpgart: Maximum main memory to use for agp me
mory: 197M
Apr 24 21:25:22 localhost kernel: agpgart: AGP aperture is 4M @ 0xd3000000
Apr 24 21:25:22 localhost kernel: eth0: link up, 100Mbps, half-duplex, lpa 0x40A
1
Apr 24 21:25:22 localhost kernel: NET: Registered protocol family 17
Apr 24 21:27:10 localhost kernel: quickcam [10.721675]: open users=1
Apr 24 21:27:10 localhost kernel: quickcam [10.746823]: close users=0
Apr 24 21:27:10 localhost kernel: quickcam [10.747402]: open users=1
Apr 24 21:27:10 localhost kernel: quickcam [10.876379]: close users=0
Apr 24 21:27:10 localhost kernel: quickcam [10.877366]: open users=1
Apr 24 21:27:15 localhost kernel: quickcam: frame lost
Apr 24 21:27:45 localhost last message repeated 41 times
Apr 24 21:27:45 localhost kernel: quickcam [45.890810]: open users=2
Apr 24 21:27:45 localhost kernel: quickcam [45.893063]: close users=1
Apr 24 21:27:49 localhost kernel: quickcam [49.590274]: buffer disabled, maxrawd
atalen=0 rawdatalen=0 datalen=65
Apr 24 21:27:49 localhost kernel: quickcam [49.590327]: qc_frame_add error -16
Apr 24 21:27:49 localhost kernel: quickcam [49.590345]: buffer disabled, maxrawd
atalen=0 rawdatalen=0 datalen=362
[...]
Apr 24 21:28:03 localhost kernel: quickcam [ 3.129122]: close users=0
Apr 24 21:28:03 localhost kernel: quickcam [ 3.129660]: open users=1
Apr 24 21:28:03 localhost kernel: quickcam [ 3.156071]: failed qc_v4l_ioctl()=-515
Apr 24 21:28:03 localhost kernel: quickcam [ 3.193643]: close users=0
Apr 24 21:28:03 localhost kernel: quickcam [ 3.194082]: open users=1
Apr 24 21:28:03 localhost kernel: quickcam [ 3.220145]: failed qc_v4l_ioctl()=-515
Apr 24 21:28:04 localhost kernel: quickcam [ 4.379811]: USB interrupt, but no data received!
Apr 24 21:28:04 localhost kernel: quickcam [ 4.389811]: USB interrupt, but no da[...]
Thanks for your greatful work
--
Do not be quick to reveal judgment. Hidden judgment often is more potent.
It can guide reactions whose effects are felt only when too late to divert them.
-- Bene Gesserit Advice to Postulants
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