Memory Mapping DMA Buffers in User Space
dceravigupta at gmail.com
Tue Jul 27 16:37:36 EST 2010
I am new to linux device driver development and I'm trying to learn the
memory mapping. Currently I am trying to memory map a dma buffer allocated
using pci_alloc_consistent() function.
Now what exactly I want is that whenever I map a char device from user space
program, let say /dev/test, internally that DMA buffer gets memory mapped to
the user space? Also what should I pass as the length parameter in the
Thanks in advance
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Linuxppc-dev