Dear list members,
I have a new laptop with an included webcam that is identified by lsusb -v as
[Exhibit 1]. As such it should be supported by the uvcvideo driver.
I compiled and installed the driver. Everything went well, the driver loads
OK. Output from lsmod is shown in [Exhibit 2]. A device /dev/video0 is
created. However, upon trying to use the camera, errors occur as shown in
[Exhibit 3], the output of dmesg | grep uvc.
"Using the camera", as stated above, meant: using luvcview. Upon call of
luvcview, [Exhibit 4] was received as error message, the logical next step of
calling luvcview -f yuv returned the error message shown in [Exhibit 5].
I'd be grateful for anybody pointing me toward what I'm doing wrong. I'm
frankly clueless.
Kind regards,
Amy
===
Exhibit 1:
Bus 006 Device 003: ID 174f:5a31 Syntek
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2 ?
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x174f Syntek
idProduct 0x5a31
bcdDevice 11.12
iManufacturer 2
iProduct 1
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 627
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 1
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 77
dwClockFrequency 15.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 2
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 26
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {7033f028-1163-2e4a-ba2c-6890eb334016}
bNumControl 1
bNrPins 1
baSourceID( 0) 3
bControlSize 1
bmControls( 0) 0x01
iExtension 0
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 3
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x000037ff
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
White Balance Temperature
White Balance Component
Backlight Compensation
Gain
Power Line Frequency
White Balance Temperature, Auto
White Balance Component, Auto
iProcessing 0
bmVideoStandards 0x 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 6
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 407
bEndPointAddress 129
bmInfo 0
bTerminalLink 2
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 27
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 7
guidFormat
{59555932-0000-1000-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 1 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 640
wHeight 480
dwMinBitRate 614400
dwMaxBitRate 18432000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
dwFrameInterval( 5) 10000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x00
Still image unsupported
wWidth 352
wHeight 288
dwMinBitRate 202752
dwMaxBitRate 6082560
dwMaxVideoFrameBufferSize 202752
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
dwFrameInterval( 5) 10000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x00
Still image unsupported
wWidth 320
wHeight 240
dwMinBitRate 153600
dwMaxBitRate 4608000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
dwFrameInterval( 5) 10000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x00
Still image unsupported
wWidth 176
wHeight 144
dwMinBitRate 50688
dwMaxBitRate 1520640
dwMaxVideoFrameBufferSize 50688
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
dwFrameInterval( 5) 10000000
VideoStreaming Interface Descriptor:
bLength 50
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x00
Still image unsupported
wWidth 160
wHeight 120
dwMinBitRate 38400
dwMaxBitRate 1152000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 6
dwFrameInterval( 0) 333333
dwFrameInterval( 1) 500000
dwFrameInterval( 2) 666666
dwFrameInterval( 3) 1000000
dwFrameInterval( 4) 2000000
dwFrameInterval( 5) 10000000
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 960
dwMinBitRate 2457600
dwMaxBitRate 22118400
dwMaxVideoFrameBufferSize 2457600
dwDefaultFrameInterval 1111111
bFrameIntervalType 3
dwFrameInterval( 0) 1111111
dwFrameInterval( 1) 2000000
dwFrameInterval( 2) 10000000
VideoStreaming Interface Descriptor:
bLength 38
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 7
bmCapabilities 0x00
Still image unsupported
wWidth 1280
wHeight 1024
dwMinBitRate 2621440
dwMaxBitRate 23592960
dwMaxVideoFrameBufferSize 2621440
dwDefaultFrameInterval 1111111
bFrameIntervalType 3
dwFrameInterval( 0) 1111111
dwFrameInterval( 1) 2000000
dwFrameInterval( 2) 10000000
VideoStreaming Interface Descriptor:
bLength 34
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 7
wWidth( 0) 1280
wHeight( 0) 1024
wWidth( 1) 1280
wHeight( 1) 960
wWidth( 2) 640
wHeight( 2) 480
wWidth( 3) 352
wHeight( 3) 288
wWidth( 4) 320
wHeight( 4) 240
wWidth( 5) 176
wHeight( 5) 144
wWidth( 6) 160
wHeight( 6) 120
bNumCompressionPatterns 7
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0100 1x 256 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0320 1x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b20 2x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1320 3x 800 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x13e8 3x 1000 bytes
bInterval 1
===
Exhibit 2:
Module Size Used by
ip6t_LOG 23940 8
xt_tcpudp 20480 6
xt_pkttype 18944 3
ipt_LOG 23428 9
xt_limit 20356 17
snd_pcm_oss 68992 0
snd_mixer_oss 35584 1 snd_pcm_oss
binfmt_misc 30220 1
snd_seq 83600 0
nfs 312408 1
lockd 94032 2 nfs
nfs_acl 20736 1 nfs
sunrpc 240312 11 nfs,lockd,nfs_acl
ip6t_REJECT 22272 3
nf_conntrack_ipv6 36168 4
ipt_REJECT 21120 3
xt_state 19712 8
iptable_mangle 20608 0
iptable_nat 24976 0
nf_nat 39576 1 iptable_nat
iptable_filter 20736 1
ip6table_mangle 20480 0
nf_conntrack_netbios_ns 19968 0
nf_conntrack_ipv4 29576 7 iptable_nat,nf_nat
nf_conntrack 91536 6
nf_conntrack_ipv6,xt_state,iptable_nat,nf_nat,nf_conntrack_netbios_ns,nf_conntrack_ipv4
ip_tables 39056 3 iptable_mangle,iptable_nat,iptable_filter
cpufreq_conservative 26248 0
ip6table_filter 20608 1
cpufreq_userspace 23556 0
ip6_tables 40720 3 ip6t_LOG,ip6table_mangle,ip6table_filter
cpufreq_powersave 18816 0
x_tables 43144 11
ip6t_LOG,xt_tcpudp,xt_pkttype,ipt_LOG,xt_limit,ip6t_REJECT,ipt_REJECT,xt_state,iptable_nat,ip_tables,ip6_tables
powernow_k8 32772 1
ipv6 331544 21 ip6t_REJECT,nf_conntrack_ipv6,ip6table_mangle
vfat 30848 0
fat 74168 1 vfat
fuse 72256 5
loop 37508 0
dm_mod 88600 0
uvcvideo 75912 0
snd_hda_intel 497452 1
snd_usb_audio 117504 0
snd_usb_lib 37504 1 snd_usb_audio
snd_pcm 115208 3 snd_pcm_oss,snd_hda_intel,snd_usb_audio
snd_rawmidi 46976 1 snd_usb_lib
snd_timer 45072 2 snd_seq,snd_pcm
snd_seq_device 26516 2 snd_seq,snd_rawmidi
snd_page_alloc 28688 2 snd_hda_intel,snd_pcm
snd_hwdep 28424 2 snd_hda_intel,snd_usb_audio
sdhci 35980 0
snd 96248 13
snd_pcm_oss,snd_mixer_oss,snd_seq,snd_hda_intel,snd_usb_audio,snd_usb_lib,snd_pcm,snd_rawmidi,snd_timer,snd_seq_device,snd_hwdep
i2c_piix4 27276 0
rtc_cmos 28728 0
mmc_core 74304 1 sdhci
rtc_core 41012 1 rtc_cmos
k8temp 23040 0
ohci1394 50868 0
rtc_lib 20224 1 rtc_core
serio_raw 24708 0
joydev 30848 0
sr_mod 35636 1
soundcore 26000 1 snd
i2c_core 45344 1 i2c_piix4
cdrom 53416 1 sr_mod
ieee1394 122216 1 ohci1394
video 43156 0
compat_ioctl32 25984 1 uvcvideo
asus_laptop 38492 0
output 21248 1 video
===
Exhibit 3:
schlepptop:/home/amelie # dmesg | grep uvc
uvcvideo: Found UVC 1.00 device USB 2.0 Camera (174f:5a31)
usbcore: registered new interface driver uvcvideo
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
battery 33672 0
videodev 52096 2 uvcvideo,compat_ioctl32
ac 24328 0
v4l1_compat 29444 2 uvcvideo,videodev
led_class 22920 1 asus_laptop
button 27040 0
r8169 51204 0
sg 56912 0
usbhid 65488 0
hid 59296 1 usbhid
ff_memless 23176 1 usbhid
ehci_hcd 56204 0
ohci_hcd 42500 0
usbcore 188248 7
uvcvideo,snd_usb_audio,snd_usb_lib,usbhid,ehci_hcd,ohci_hcd
sd_mod 47280 6
edd 28176 0
ext3 170768 2
mbcache 27396 1 ext3
jbd 82240 1 ext3
fan 23944 0
ahci 50696 5
pata_atiixp 25984 1
libata 194976 2 ahci,pata_atiixp
scsi_mod 194904 4 sr_mod,sg,sd_mod,libata
dock 29344 1 libata
thermal 43040 0
processor 72668 2 powernow_k8,thermal
===
Exhibit 3:
schlepptop:/home/amelie # dmesg | grep uvc
uvcvideo: Found UVC 1.00 device USB 2.0 Camera (174f:5a31)
usbcore: registered new interface driver uvcvideo
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
uvcvideo: Failed to query (1) UVC control 1 (unit 0) : -110 (exp. 26).
===
Exhibit 4:
luvcview version 0.2.1
Video driver: x11
A window manager is available
video /dev/video0
Unable to set format: 22.
Init v4L2 failed !! exit fatal
===
Exhibit 5:
luvcview version 0.2.1
Video driver: x11
A window manager is available
video /dev/video0
Unable to set format: 5.
Init v4L2 failed !! exit fatal
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