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Subject: Memory Mapping Buffers smaller than page size?
From: Ravi Gupta <dceravigupta@gmail.com>
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Hi,

I am new to linux device drivers development. I have created 16 buffers of
size 256 bytes each(using kmalloc()) in my device driver code. I want to
memory map these buffers to user space. Now is it possible to memory map
these buffer(16*256 = 4096 = 1 page on 32 bit linux) into a single page in
user space OR i have to map them in individual pages in user space? Note,
all the buffers may not be stored in continuous memory location.

Thanks in advance
Ravi Gupta

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Hi,<br><br>I am new to linux device drivers development. I have created 16 =
buffers of size 256 bytes each(using kmalloc()) in my device driver code. I=
 want to memory map these buffers to user space. Now is it possible to memo=
ry map these buffer(16*256 =3D 4096 =3D 1 page on 32 bit linux) into a sing=
le page in user space OR i have to map them in individual pages in user spa=
ce? Note, all the buffers may not be stored in continuous memory location.<=
br>
<br>Thanks in advance<br>Ravi Gupta<br>

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