Re: [Libcdio-devel] Setting cdio_drive_cap_misc_t

[Eric Shattow]

I know hdparm to be able to lock / unlock a cdtray on an IDE device. Does
that help?

On Sun, Nov 16, 2008 at 1:40 AM, Preetam <address@hidden> wrote:

> Hi Robert,
> thanks for the reply.
>
> I was looking for writing a small C program or modify mmc-tool to achieve
> that, but I couldn't locate the MMC command that allows locking the tray.
> The output of mmc-tool -C is as follows:
> Mode sense 10 information
>        Reads CD-R media.
>        Lock state is unlocked.
>        PREVENT/ALLOW jumper is not present.
>        Loading mechanism type  is 0: caddy type loading mechanism.
>        Maximum read speed is 10818 K bytes/sec (about 61X)
>        Number of Volume levels is 16183
>        Buffers size for data is 61823 KB
>        Current read speed is 10531 KB
>        Maximum write speed is 256 KB
>        Current write speed is 45503 KB
>
> The mmc.h in the headers also does not show any such MMC
> command. Atleast the device.h mentions of such a capability.
> I'll look at MMC specs if I can find one. If anyone knows
> the command,  the help will be appreciated.
>
> -P Patil
>
> On Sun, Nov 16, 2008 at 12:51 AM, Robert William Fuller
> <address@hidden> wrote:
> > Preetam wrote:
> >>
> >> I need to disable the manual eject button on the CD drive,
> >> irrespective of whether the drive is mounted or not (I have a 1-year
> >> old who has developed fancy for the eject button).
> >>
> >> Could someone tell me if there is already a command to achieve this?
> >> Some hints on writing such a script/program are also welcome,
> >
> > I looked into this once.  I seem to recall that there is an MMC command
> that
> > does this.  While there is no explicit API in libcdio to support locking
> the
> > drive, you can use the generic MMC API that libcdio exports to accomplish
> > this.
> >
> > This probably doesn't help you much if you're not a C programmer.
> > Unfortunately, I'm a little busy with graduate school, so I could not
> hope
> > to help you with this before Christmas break.
> >
> > Rob
> >
> >
> >
>
>
>