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From: "Brian J. Murrell" <brian@interlinx.bc.ca>
To: linux-media@vger.kernel.org
Subject: one tuner of a PVR-500 not returning any data
Date: Thu, 22 Nov 2012 07:33:47 -0500	[thread overview]
Message-ID: <k8l63b$1bd$1@ger.gmane.org> (raw)

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I have a PVR-500 in a machine here where one of the /dev/video* devices
can successfully be opened and return data while the other can be
opened but returns to data to a read(2).  i.e.:

open("/dev/video3", O_RDONLY|O_LARGEFILE) = 3
dup3(3, 0, 0)                           = 0
close(3)                                = 0
fstat64(0, {st_mode=S_IFCHR|0660, st_rdev=makedev(81, 11), ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbfc7f568) = -1 EINVAL (Invalid argument)
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7423000
read(0, 

and the process blocks there.

Any idea why this might be happening?  Kernel is 3.2.0-33-generic which
I believe is 3.2.1 based.

b.


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             reply	other threads:[~2012-11-22 19:19 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-22 12:33 Brian J. Murrell [this message]
2012-11-23 13:24 ` one tuner of a PVR-500 not returning any data Brian J. Murrell

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