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USB Cdrom driver load fail

Question asked by Christian Kim on May 21, 2015
Branched to a new discussion

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.

 

<phenomenon>

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

Original Attachment has been moved to: dmesg.txt.zip

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