On Tuesday 11 September 2012 20:31:17 Aaron Lu wrote:
> OK, I think I got your meaning.
>
> For a simpler scenario:
> 1 User application did an ioctl to lock the door of the ODD when there
> is no medium inside(but why? :-);
> 2 The ODD is runtime suspended;
> 3 The ODD is runtime powered off;
> 4 User presses the eject button, and the door is ejected in sr_resume.
>
> Condition 1 is a must for this to happen, as if there is medium inside,
> the ODD will never be powered off; or if the underlying block device is
> opened by some process, it will not enter runtime suspend state.
>
> Looks like I need to record if the door is locked in scsi_cd structure
> so that I did not mistakenly eject the door. Does this sound OK?
Yes, that will do.
Regards
Oliver
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