Date: Thu, 14 Oct 2010 22:19:08 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: Weongyo Jeong <weongyo@freebsd.org> Cc: "src-committers@freebsd.org" <src-committers@freebsd.org>, "svn-src-user@freebsd.org" <svn-src-user@freebsd.org> Subject: Re: svn commit: r213847 - user/weongyo/usb/sys/dev/usb Message-ID: <201010142219.08408.hselasky@c2i.net> In-Reply-To: <201010142004.o9EK458X035369@svn.freebsd.org> References: <201010142004.o9EK458X035369@svn.freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday 14 October 2010 22:04:05 Weongyo Jeong wrote: > + for (i = 0; i < up->up_frames; i++) { > + if (ptr + sizeof(u_int32_t) >= end) > + goto done; > + *((u_int32_t *)ptr) = xfer->frlengths[i]; > + ptr += sizeof(u_int32_t); > + > + if (ptr + xfer->frlengths[i] >= end) > + goto done; > + usbd_get_page(&xfer->frbuffers[i], 0, &res); > + bcopy(res.buffer, ptr, xfer->frlengths[i]); > + ptr += xfer->frlengths[i]; > + } For isochronous transfers only the first frbuffer is used for all transfers, which are back to back. --HPS
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201010142219.08408.hselasky>