Do you have a question? Post it now! No Registration Necessary
Subject
- Posted on
VirtualCopy and VirtualAlloc
- 01-13-2004
January 13, 2004, 11:01 am

Hi,
This might be a very basic question. But please help me, as I am a
newbie to this field.
I am involved in writing an audio codec (linux) driver which has no
DMA controller of its own, but the coprocessor(MQ1132) which controls
the CODEC has a dma controller. Can I directly address a memory
location (Virtual) through the linux device driver, or should I map it
and then use. Actually the windows code for the same is doing some
VirtualAlloc and VirtualCopy. Do I need to do any such things or can I
directly use the the virtual address directly in my code.
Thanks in advance
Suresh. R
This might be a very basic question. But please help me, as I am a
newbie to this field.
I am involved in writing an audio codec (linux) driver which has no
DMA controller of its own, but the coprocessor(MQ1132) which controls
the CODEC has a dma controller. Can I directly address a memory
location (Virtual) through the linux device driver, or should I map it
and then use. Actually the windows code for the same is doing some
VirtualAlloc and VirtualCopy. Do I need to do any such things or can I
directly use the the virtual address directly in my code.
Thanks in advance
Suresh. R
Site Timeline
- » Accelerated framebuffer driver
- — Next thread in » Embedded Linux
-
- » Linux on VxWorks ?
- — Previous thread in » Embedded Linux
-
- » Crosscompiling for ARM: reloc type R_ARM_ABS32 is not supported for PIC - ...
- — Newest thread in » Embedded Linux
-
- » regulacija 40 - 80V DC?
- — The site's Newest Thread. Posted in » Electronics (Croatian)
-