You'll have to use the VFS functions (vn_open, vn_rdwr, vn_close, ect). This also requires a good grasp on vnodes, vnode reference counting, and vnode locking. You'll find doing file I/O from within the kernel is very different, and more difficult, than from userland. Your best bet is to find a book or online tutorials on using VFS. On Nov 13, 2003, at 12:34 PM, Matt Jaffa wrote: In a Kernel Extension, I am trying to do file reading and writing, how do i go about this, I included fstream but I dont think that this is supported. Any suggestions? _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.