Re: [Rdi1] Re: [PATCH] Add MOUNT_STATUS ioctl to cdrom device

Jens Axboe
2003-08-26T14:28:57Z

On Tue, Aug 26 2003, Samphan Raruenrom wrote:
> Jens Axboe wrote:
> >On Tue, Aug 26 2003, Samphan Raruenrom wrote:
> >>>Exactly. You poll media events from the drive, and upon an eject request
> >>>you try and umount it. If it suceeds, you eject the tray.
> >>No, it seems impossible to sense the eject request (right?). This
> >No it isn't, in fact there are several ways to do it. Just by searching
> >this list you should be able to find them.
>
> YES!!
> http://www.ussg.iu.edu/hypermail/linux/kernel/0202.0/att-0603/01-cd_poll.c
> get_media_event() = 1 -> eject
> Thanks :-) I think you can't imagine how happy I am now. Thank you again.

I'm surprised you didn't find these things up front.

> >>is what I really did with the patched kernel and patched magicdev.
> >magicdev is a piece of crap.
>
> Why? I read all its code. Because of 2 sec. polling?

Because it relies on unreliable mechanisms instead of using the proper
support. That makes it 100% crap in my eyes, unusable.

> >I think you need to spend a little more time thinking/researching this
> >problem. At least it really looks like you are going about it all wrong.
>
> You've just put me on the right track. Thank you very much. I really
> appreciate your and every others insightful comments.

No problem.

--
Jens Axboe