In article <3BB49438.1F2C59B3@berlin.de> you wrote: > Hello! > > Is there a way to map user space memory into kernel address space, e.g. > that i don't have to call get_user(var,...) but simply use var = > *user_space_ptr? > > What i intend to do (as the next step) is to DMA-transfer data directly > between a PCI device and user space memory. The buffer in user space > should be allocated with malloc(), so allocating a buffer in kernel and > mmap()-ping it to user space is not the solution.. > > I guess this has been asked before, any links to further information > would be great. map_user_kiobuf is what you want :) Some more explanation at: ftp://ftp.openlinux.org/pub/people/hch/kio/kiobuf.txt - Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/
