Messages in this thread | | | Date | Wed, 25 Feb 2004 16:19:17 -0500 (EST) | From | Byron Stanoszek <> | Subject | How to force cdrom driver to redetect media after cdrecord? |
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> > I originally thought so, but maybe I was wrong. Jens posted a patch > > to invalidate kernel buffers on an umount - if the problem persists > > with that patch, I still believe it is a hardware fault. > > Perhaps another program has the device open still? In that case, we > don't invalidate the toc cache. > > -- > Jens Axboe
Jens, I ran into something similar today. I'd like to use cdrecord to write to a CD and then immediately turn around and read from it for verification purposes...
...Except that I only get 2048 bytes from a 'cat /dev/scd0' until I take the CD out and put it back in.
Is there a known way for a userland application to make an ioctl to the cdrom device in a 2.4/2.6 kernel to tell it the media changed without forcing a tray open & close?
I intend to execute a program with this ioctl (if there is such a thing) after the cdrecord and before the 'cat'.
Thanks, -Byron
-- Byron Stanoszek Ph: (330) 644-3059 Systems Programmer Fax: (330) 644-8110 Commercial Timesharing Inc. Email: byron@comtime.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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