[Bug 331014] Re: uvc video driver lacks VIDIOCGMBUF ioctl

[dcam]

apport information

** Tags added: apport-collected

** Description changed:

  The UVC video driver lacks the VIDIOCGMBUF ioctl and this limits the
  software it can work with.
  
  This problem can easily be reproduced as follows.  Note the error it
  gets for the VIDIOCGMBUF ioctl.
  
  dcampbel at vostro:~$ hasciicam 
  HasciiCam 0.9.1 - (h)ascii 4 the masses! - http://ascii.dyne.org
  (c)2000-2003 Denis Rojo < jaromil @ dyne.org >
  watch out for the (h)ASCII ROOTS http://hascii.org
  
  Device detected is /dev/video0
  Integrated Webcam
  1 channels detected
  max size w[1280] h[1024] - min size w[48] h[32]
  Video capabilities:
  VID_TYPE_CAPTURE          can capture to memory
  !! error in ioctl VIDIOCGMBUF: : Invalid argument
  
  This is a right-up-to-date Intrepid....
  
  root at vostro:~# lsb_release -rd
  Description:	Ubuntu 8.10
  Release:	8.10
+ --- 
+ AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
+ AplayDevices:
+  **** List of PLAYBACK Hardware Devices ****
+  card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
+    Subdevices: 0/1
+    Subdevice #0: subdevice #0
+ Architecture: i386
+ ArecordDevices:
+  **** List of CAPTURE Hardware Devices ****
+  card 0: Intel [HDA Intel], device 0: ALC268 Analog [ALC268 Analog]
+    Subdevices: 1/1
+    Subdevice #0: subdevice #0
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  dcampbel   3923 F.... pulseaudio
+  /dev/snd/pcmC0D0p:   dcampbel   3923 F...m pulseaudio
+ CRDA: Error: [Errno 2] No such file or directory
+ Card0.Amixer.info:
+  Card hw:0 'Intel'/'HDA Intel at 0xf8300000 irq 48'
+    Mixer name	: 'Realtek ALC268'
+    Components	: 'HDA:10ec0268,10280275,00100003'
+    Controls      : 12
+    Simple ctrls  : 7
+ DistroRelease: Ubuntu 10.10
+ HibernationDevice: RESUME=UUID=6acbb5ef-566a-41e9-8ec1-ef4d0ab03fa6
+ MachineType: Dell Inc. Vostro1710
+ NonfreeKernelModules: nvidia
+ Package: linux (not installed)
+ ProcCmdLine: root=UUID=de3674a2-2543-4e51-95ea-70f61cbad1ba ro quiet splash
+ ProcEnviron:
+  PATH=(custom, no user)
+  LANG=en_AU.UTF-8
+  SHELL=/bin/bash
+ ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
+ Regression: No
+ RelatedPackageVersions: linux-firmware 1.38
+ Reproducible: Yes
+ Tags: maverick kernel-graphics needs-upstream-testing
+ Uname: Linux 2.6.35-22-generic i686
+ UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
+ dmi.bios.date: 10/09/2008
+ dmi.bios.vendor: Dell Inc.
+ dmi.bios.version: A10
+ dmi.board.name: 0X805C
+ dmi.board.vendor: Dell Inc.
+ dmi.chassis.type: 8
+ dmi.chassis.vendor: Dell Inc.
+ dmi.chassis.version: N/A
+ dmi.modalias: dmi:bvnDellInc.:bvrA10:bd10/09/2008:svnDellInc.:pnVostro1710:pvrNull:rvnDellInc.:rn0X805C:rvr:cvnDellInc.:ct8:cvrN/A:
+ dmi.product.name: Vostro1710
+ dmi.product.version: Null
+ dmi.sys.vendor: Dell Inc.

** Attachment added: "AcpiTables.txt"
   https://bugs.edge.launchpad.net/bugs/331014/+attachment/1719055/+files/AcpiTables.txt

-- 
uvc video driver lacks VIDIOCGMBUF ioctl
https://bugs.launchpad.net/bugs/331014
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