[lkml]   [2001]   [Sep]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: inverse mmap() available?
    In article <> 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:

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-03-22 13:03    [W:0.045 / U:20.420 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site