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USB Cdrom driver load fail

Question asked by Christian Kim on May 21, 2015
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Hi, All


I'm using imx6qsabresd evaluation board.


some test for the board, but it is so strange.

I've connect usb cdrom through OTG.



1) When device is recognize but driver is not loaded sometimes to /dev/cdrom.

2) Even if the driver loaded, but I don't get the event for cd load and eject.

    The status is that It is cdrom locked status, I think.

    In this case, should input command for "touch /dev/cdrom" and only then recognize cdrom media exist or not exist.


it is builded for build-x11, fsl-image-qt5.


Is there someone who helped me?


<dmesg : Detail message is attached>

[   13.748614] usb-storage 1-1.1:1.0: USB Mass Storage device detected

[   13.753930] scsi1 : usb-storage 1-1.1:1.0

[   14.758335] scsi 1:0:0:0: CD-ROM            HL-DT-ST BD-RE  BE06LU10  YE05 PQ: 0 ANSI: 0

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