IOCTLs vs Mapped Memory

NTDEV
1

Dear All,
Iam using mapped memory approach for interaction between my driver
and application. Although its useful, there are lot of restrictions like you
can’t write to memory in arbitrary thread context and all that. Can someone
suggest me as to which approach is better? And can someone tell me how to
manage mapped memory from an arbitrary thread context…

Thanks,
Seshagiri.
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2

Hi Seshagiri!

What kind of configuration is it. You want it for DMA ?
Could you explain completely?

Vysyaraju Dali Raju

Vysyaraju Daliraju, / Systems Software Engineer
SBS Technologies, 8371C Central Ave. / Newark, CA 94560
Phone: 510-742-2570 / Fax: -2501 / EMail: xxxxx@sbs.com
mailto:xxxxx

-----Original Message-----
From: Seshagiri_Babu [mailto:xxxxx@Satyam.com]
Sent: Tuesday, September 10, 2002 11:14 PM
To: NT Developers Interest List
Subject: [ntdev] IOCTLs vs Mapped Memory

Dear All,
Iam using mapped memory approach for interaction between my driver
and application. Although its useful, there are lot of restrictions like you
can’t write to memory in arbitrary thread context and all that. Can someone
suggest me as to which approach is better? And can someone tell me how to
manage mapped memory from an arbitrary thread context…

Thanks,
Seshagiri.

This email (including any attachments) is intended for the sole use of the
intended recipient/s and may contain material that is CONFIDENTIAL AND
PRIVATE COMPANY INFORMATION. Any review or reliance by others or copying or
distribution or forwarding of any or all of the contents in this message is
STRICTLY PROHIBITED. If you are not the intended recipient, please contact
the sender by email and delete all copies; your cooperation in this regard
is appreciated.


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