On Tue, May 30, 2006 at 02:49:22PM +0200, Jimmy Olgeni wrote: +> +> Hello, +> +> Just quick busdma question... +> +> I'm currently upgrading a custom device driver to use bus_dmamap_load_uio rather than uiomove. Everything works fine, but calls to "write" fail unless I set uio->uio_resid +> to 0 by hand (as I'm not using uiomove anymore). +> +> Am I supposed to set uio_resid by hand when using bus_dmamap_load_uio, or is there a better way to signal that all the data in uio was used?
From what I see, bus_dmamap_load_uio() is using uio_resid as the number of bytes to proceed, so it has to be set before the call. -- Pawel Jakub Dawidek http://www.wheel.pl [EMAIL PROTECTED] http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am!
pgpmp8Q0Urm4t.pgp
Description: PGP signature
