The Player Project / Patches / #225 camera1394 DMA bus cleanup patch for libdc1394 v2.0

#225 camera1394 DMA bus cleanup patch for libdc1394 v2.0

Status: closed-accepted

Owner: Brian Gerkey

Labels: Player (393)

Priority: 5

Updated: 2007-12-12

Created: 2007-12-12

Creator: Jefferson Provost

Private: No

I am using libdc1394 2.0.0a7 and the CVS version of Player to grab frames frames from a PointGray Firefly MV use FORMAT7_MODE0.

The CVS version of the driver was not completely cleaning up on shutdown, causing me to have to restart the server after disconnecting the client, or I would get errors like this from the server upon reconnecting:

(capture.c) VIDEO1394_IOC_LISTEN_CHANNEL ioctl failed: Device or resource busy
Libdc1394 error (capture.c:dc1394_capture_setup:323): IOCTL failure : Could not setup DMA capture
warning : DMA capture failed; falling back on RAW method
error : unable to open camera in VIDE0 or RAW modes
error : unable to subscribe to camera device

This patch fixes the problem by adding a call to dc1394_camera_stop to the driver's Shutdown method, when using libdc1394 v2.0.

Jeff

Discussion

Jefferson Provost - 2007-12-12

cvs context diffs on camera1394.cc

camera1394.diff

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Nobody/Anonymous - 2007-12-12

Logged In: NO

applied to CVS head, thanks

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Brian Gerkey - 2007-12-12

status: open --> closed-accepted
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camera1394 DMA bus cleanup patch for libdc1394 v2.0

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#225 camera1394 DMA bus cleanup patch for libdc1394 v2.0

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