Date: Thu, 24 Jul 2008 14:26:45 +0200 From: "Riaan Kruger" <riaank@gmail.com> To: "FreeBSD Questions" <freebsd-questions@freebsd.org> Subject: Prepending data to struct uio in kernel Message-ID: <85c4b1850807240526y353f3175m65823a071dd8f6a0@mail.gmail.com>
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I wish to insert a small buffer into (actually in front of) a uio structure received from userland through an ioctl call. I then want to map this uio structure to a dma map. Currently I am mallocing a new buffer, copying the uio data and my own data to that buffer and then mapping the buffer to DMA. Is it possible to insert data into a uio structure? Are there any functions that might help me? Is it a bad idea? (I do hope this is not to the incorrect list) Riaan
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