Hi, everyone:
I am using IFS kit 2003 SP1 for developping file system filtering driver.
Does anyone know how to detect CDROM/Floppy insert and eject action?
Hi Jian!!
refer to the documentation on IRP_MJ_PNP.
Filter the IRP_MJ_PNP requests and check out the Minor Function codes:
IRP_MN_CANCEL_REMOVE_DEVICE
IRP_MN_QUERY_REMOVE_DEVICE
IRP_MN_REMOVE_DEVICE
IRP_MN_START_DEVICE
IRP_MN_SURPRISE_REMOVAL
i think that should be helpful…
^Happy Filtering^
Ayush Gupta
Calsoft Pvt. Ltd.
In case of CDROM, the CD is mounted after it is inserted.
I think u can check for the IRP_MJ_MOUNT_VOLUME request.
^Happy Filtering^
Ayush Gupta
Calsoft Pvt. Ltd.
Hi, ayush:
Thanks for your help.
But the problem is that sometimes it can get IRP_MJ_MOUNT_VOLUME in the filter’s pre or post callback, but sometimes cannot, and can get on some machine, but cannot get on other machines,
which puzzles me a lot.
ya!
Many a times when u remove a cd from the tray, it so happens that in explorer u can see the icon / folders of the cd. I think it happens since the explorer as far as i think caches the info. If it is not able to refresh it, the volume dismount requests does not come.
Similar thing goes for the mounting too. Many a times, the volume is mounted on first access to the cd.
Read the topic “Mounting a Volume” in the IFS docs.
that would clarify your doubts.
i think u should try out filtering the IRP_MJ_PNP requests. i dunno much about PNP but u should try it out.
Ayush Gupta
Calsoft Pvt. Ltd.
Much better idea would be to ping device PDO with TEST_UNIT_READY (0x00) or GET_EVENT_STATUS_NOTIFICATION (0x4A) CDBs
and watch response changes from “no media” -> “fully ready”. At least Windows and Linux auto-mounters do exactly this…
Regards,
Anton A. Kolomyeytsev
CEO, Rocket Division Software
-----Original Message-----
From: xxxxx@lists.osr.com [mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@yahoo.com
Sent: Wednesday, December 20, 2006 11:38 AM
To: Windows File Systems Devs Interest List
Subject: RE:[ntfsd] How to monitor CDROM and Floppy?
In case of CDROM, the CD is mounted after it is inserted.
I think u can check for the IRP_MJ_MOUNT_VOLUME request.
^Happy Filtering^
Ayush Gupta
Calsoft Pvt. Ltd.
Questions? First check the IFS FAQ at https://www.osronline.com/article.cfm?id=17
You are currently subscribed to ntfsd as: xxxxx@rocketdivision.com
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> Many a times when u remove a cd from the tray, it so happens that in
explorer u can see the icon / folders of the cd. I think it happens since
the explorer as far as i think caches the info. If it is not able to
refresh it, the volume dismount requests does not come.
If AUTOPLAY is on, the cdrom.sys set the event in a signal state when the
media is changed.
–
Slava Imameyev, xxxxx@hotmail.com
wrote in message news:xxxxx@ntfsd…
> ya!
> Many a times when u remove a cd from the tray, it so happens that in
> explorer u can see the icon / folders of the cd. I think it happens since
> the explorer as far as i think caches the info. If it is not able to
> refresh it, the volume dismount requests does not come.
> Similar thing goes for the mounting too. Many a times, the volume is
> mounted on first access to the cd.
> Read the topic “Mounting a Volume” in the IFS docs.
> that would clarify your doubts.
> i think u should try out filtering the IRP_MJ_PNP requests. i dunno much
> about PNP but u should try it out.
>
> Ayush Gupta
> Calsoft Pvt. Ltd.
>
> Much better idea would be to ping device PDO with TEST_UNIT_READY (0x00)
or GET_EVENT_STATUS_NOTIFICATION (0x4A)
Yes, the cdrom.sys uses GET_EVENT_STATUS_NOTIFICATION if possible and
polling with TEST_UNIT_READY otherwise.
–
Slava Imameyev, xxxxx@hotmail.com
“Anton A. Kolomyeytsev” wrote in message
news:xxxxx@ntfsd…
Much better idea would be to ping device PDO with TEST_UNIT_READY (0x00) or
GET_EVENT_STATUS_NOTIFICATION (0x4A) CDBs
and watch response changes from “no media” -> “fully ready”. At least
Windows and Linux auto-mounters do exactly this…
Regards,
Anton A. Kolomyeytsev
CEO, Rocket Division Software
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of xxxxx@yahoo.com
Sent: Wednesday, December 20, 2006 11:38 AM
To: Windows File Systems Devs Interest List
Subject: RE:[ntfsd] How to monitor CDROM and Floppy?
In case of CDROM, the CD is mounted after it is inserted.
I think u can check for the IRP_MJ_MOUNT_VOLUME request.
^Happy Filtering^
Ayush Gupta
Calsoft Pvt. Ltd.
—
Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
You are currently subscribed to ntfsd as: xxxxx@rocketdivision.com
To unsubscribe send a blank email to xxxxx@lists.osr.com