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[pwc] Error while doing ioctl VIDIOCPWCMPTSTATUS: Broken pipe

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Subject: [pwc] Error while doing ioctl VIDIOCPWCMPTSTATUS: Broken pipe
From: Jack Lewis <>
Date: Wed, 6 Jul 2005 21:54:31 -0600
Hello,

I am having trouble getting my QuickCam Orbit (vend/prod 0x46d/0x8b5)
working.  I am working on an embedded single board computer with an
ARM processor.  Only the 2.4.26 kernel is supported.

It seems the pwc 10.0.7a requires Linux 2.6, so I am using pwc 9.0.2,
the newest I can find that works with 2.4.26.

I would sincerely appreciate any help.

$ insmod videodev.o
Using videodev.o
Linux video capture interface: v1.00

$ insmod pwc.o
Using pwc.o
pwc Philips webcam module version 9.0.2 loaded.
pwc Supports Philips PCA645/646, PCVC675/680/690,
PCVC720[40]/730/740/750 & PCVC830/840.
pwc Also supports the Askey VC010, various Logitech Quickcams, Samsung
MPC-C10 and MPC-C30,
pwc the Creative WebCam 5 & Pro Ex, SOTEC Afina Eye and Visionite
VCS-UC300 and VCS-UM100.
usb.c: registered new driver Philips webcam
pwc Logitech QuickCam Orbit/Sphere USB webcam detected.
pwc Registered as /dev/video0.

$ setpwc -p -d /dev/v4l/video0
setpwc v0.9, (C) 2003-2005 by fopwc Failed to set LED on/off time.

Current device: Logitech QuickCam Orbit
VIDIOCPWCPROBE returns: Logitech QuickCam Orbit - 740
Resolution (x, y): 176, 144
Offset: 0, 0
Framerate: 10
Brightness: 7680
Hue: 65535
Colour: 32768
Contrast: 64512
Whiteness: 49152
Palette: YUV 4:2:0 Planar
Compression preference: 2
Automatic gain control: -7410
Whitebalance mode: auto
Blinking of LED is not supported by the combination
of your webcam and the driver.
Sharpness: -1
Backlight compensation mode: off
Anti-flicker mode: on
Noise reduction mode: 1
Pan min. : -7000, max.: 7000
Tilt min.: -3000, max.: 2500
Pan  (degrees * 100): 0
Tilt (degrees * 100): 0

$ setpwc  -d /dev/v4l/video0  -u
setpwc v0.9, (C) 2003-2005 by 
Error while doing ioctl VIDIOCPWCMPTSTATUS: Broken pipe
Status: 6
Time pan: -1065723200
Time tilt: 76720
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