New port linux-ov511-kmod, a usb webcam driver based on the linux

driver 'ov511' (from the linux sources) built on FreeBSD using
devel/linux-kmod-compat. The driver supports some ov511 based
webcams.

THIS IS EXPERIMENTAL CODE, TRY IT AT YOUR OWN RISK.

This is only for 6.x/7.x and at the moment only for i386.

Most bugs and limitations are due to linux-kmod-compat rather than
this port itself, so upgrading linux-kmod-compat (and rebuilding
this port) will most likely improve functionality and remove some bugs.

As usual if some of the port gurus wants to help fixing any mistakes
that i may have made in the port (or missing things, e.g. a suitable
warning message when the port is installed), i will be very grateful
(and can spend more time working on the emulation code).

In particular, i could not find a good site (ftp or web) to fetch
individual linux source files from, so i copied them on my web server
and used it as MASTER_SITE. This should be fixed though.

multimedia/linux-ov511-kmod/Makefile

@@ -0,0 +1,37 @@
+# New ports collection makefile for:	linux-ov511-kmod
+# Date created:				2 February 2007
+# Whom:					luigi
+#
+# $FreeBSD$
+#
+# XXX MASTER_SITES should be replaced with some good locations
+# for individual files from linux distributions.
+
+PORTNAME=	linux-ov511-kmod
+PORTVERSION=	1.0
+CATEGORIES=	multimedia
+MASTER_SITES=	http://info.iet.unipi.it/~luigi/FreeBSD/linux/drivers/media/video/
+DISTFILES=	ov511.c ov511.h
+DIST_SUBDIR=	${PORTNAME}
+
+MAINTAINER=	luigi@FreeBSD.org
+COMMENT=	A port of the linux ov511 webcam driver
+
+# Requires the linux emulation layer to be built
+BUILD_DEPENDS=	/usr/share/mk/bsd.linux_kmod.mk:${PORTSDIR}/devel/linux-kmod-compat
+
+NO_PACKAGE=	depends on kernel sources
+
+# This is our Makefile to be used for build/install.
+MAKEFILE=	Makefile.kld
+ALL_TARGET=	depend all
+
+# we simply copy the sources from the original site
+do-extract:
+	@${MKDIR} ${WRKSRC}
+	( cd ${_DISTDIR} && ${CP} ${DISTFILES} ${WRKSRC} )
+
+post-extract:
+	@${CP} ${FILESDIR}/${MAKEFILE} ${WRKSRC}
+
+.include <bsd.port.mk>

multimedia/linux-ov511-kmod/distinfo

@@ -0,0 +1,6 @@
+MD5 (linux-ov511-kmod/ov511.c) = 250f3d31665d95186493fafc5d718b76
+SHA256 (linux-ov511-kmod/ov511.c) = c6c079fe8934ef8b8e437709f5f9cb07c2e154c2d5f76daaccd037077fcc8f7f
+SIZE (linux-ov511-kmod/ov511.c) = 144700
+MD5 (linux-ov511-kmod/ov511.h) = ef3ed91f3cc0fbc08f2e2ed9669af0d9
+SHA256 (linux-ov511-kmod/ov511.h) = d0b2c61cbf0e04a453ab1521123d22a6694411f50be0ee6eb26b579554f6d958
+SIZE (linux-ov511-kmod/ov511.h) = 16379

multimedia/linux-ov511-kmod/files/Makefile.kld

@@ -0,0 +1,7 @@
+# Makefile.kld to build a driver with linux emulation.
+# See /usr/share/mk/bsd.linux_kmod.mk for more details.
+
+SRCS=	ov511.c		# sources for the linux driver
+KMOD=	ov511		# module name
+
+.include <bsd.linux_kmod.mk>

multimedia/linux-ov511-kmod/files/patch-ov511-1

@@ -0,0 +1,12 @@
+diff -ubwr drivers/media/video/ov511.h ./ov511.h
+--- drivers/media/video/ov511.h	Wed Jan 10 20:10:37 2007
++++ ./ov511.h	Wed Jan 31 10:36:17 2007
+@@ -250,7 +250,7 @@
+ 	#error "OV511_NUMFRAMES is too high"
+ #endif
+ 
+-#define OV511_NUMSBUF		2
++#define OV511_NUMSBUF		3
+ 
+ /* Control transfers use up to 4 bytes */
+ #define OV511_CBUF_SIZE		4

multimedia/linux-ov511-kmod/pkg-descr

@@ -0,0 +1,3 @@
+This port builds a kernel module with the 'ov511' USB webcam driver
+using the adaptation layer in devel/linux-kmod-compat
+The sources are taken from the Linux kernel 2.6.x

multimedia/linux-ov511-kmod/pkg-plist

@@ -0,0 +1,3 @@
+@comment The module is installed in /boot/modules
+@cwd /boot/modules
+ov511.ko