IOS_SendCommand problems

[vaseef]

hi all,
i am new to this group.

i am trying to write a VxD driver to read sectors of a CD-ROM. i found
that i can do it using the ios_sendcommand, and i wrote one Vxd by
using that.

But it is not working..
Can any one post a sample to do that. or how i can read the sectors of
a CD-rom
plz..hlp

Thanks in advance
bye from vaseef

[Massimo Soricetti]

Post by vaseef
Can any one post a sample to do that. or how i can read the sectors of
a CD-rom

You should really read some on the DDK docs...
by the way: are you writing an old, old, OLD VXD? No WDM???
It's for Win98?

[vaseef]

hi,
yes i am writing VxD driver for windows 98..
i read the ddk docs many times.. but didn't get much help to read
sectors from the cd-rom.
can any one help me

regards
Vaseef

Post by Massimo Soricetti

Post by vaseef
Can any one post a sample to do that. or how i can read the sectors of
a CD-rom

You should really read some on the DDK docs...
by the way: are you writing an old, old, OLD VXD? No WDM???
It's for Win98?

[Ian Blake]

Post by vaseef
hi,
yes i am writing VxD driver for windows 98..
i read the ddk docs many times.. but didn't get much help to read
sectors from the cd-rom.
can any one help me
regards
Vaseef

1. Allocate IOP with IOS service routine via your ILB.
2. Fill in IOR for IOR_Read
3. Call criteria routine IOS service routine
4. Call IOS_SendCommand
5. In completion routine free IOP

If your data buffers come from user mode lock and unlock them.

I am weak on detail it is a long time since I first did this.