From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Stefan_Fr=F6berg?= Date: Thu, 21 Feb 2013 12:21:00 +0200 Subject: [Buildroot] editing device_table_dev.txt In-Reply-To: <5125F38B.2030204@petroprogram.com> References: <1361403460.22521.44.camel@genx.eng.msli.com> <5125F38B.2030204@petroprogram.com> Message-ID: <5125F50C.7020902@petroprogram.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net 21.2.2013 12:14, Stefan Fr?berg kirjoitti: > 21.2.2013 1:37, John Stile kirjoitti: >> I need a better way to auto-populate /dev, using buildroot-2011.11, with >> 2.6.30 kernel, but it seems not matter what I do, /dev/ is not populated >> automaticly. >> >> My config looks like this: >> >> BR2_ROOTFS_DEVICE_CREATION_STATIC=y >> # BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS is not set >> # BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV is not set >> # BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_UDEV is not set >> BR2_ROOTFS_DEVICE_TABLE="target/generic/device_table.txt target/generic/device_table_dev.txt" >> BR2_ROOTFS_STATIC_DEVICE_TABLE="target/generic/device_table_dev.txt" >> # BR2_ROOTFS_SKELETON_DEFAULT is not set >> BR2_ROOTFS_SKELETON_CUSTOM=y >> BR2_ROOTFS_SKELETON_CUSTOM_PATH="fs/skeletonMiLON" >> BR2_ROOTFS_POST_BUILD_SCRIPT="$(TOPDIR)/board/atmel/at91sam9g20ek/post-build/post-build-scripts.bash" >> >> To use hwclock I had to create dev/rtc0. >> Although my kernel argument contains mtdparts, the mtd* and mtdblock* >> devices are not created. >> There are others too. >> >> What should my config look like in order to auto-populate /dev? >> > Well, if you don't want to manually create your device nodes then there > are several ways to autopopulate /dev > > Maybe the simplest would be just let the kernel handle it by mounting > /dev with tmpfs > So selecting BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y is the > correct option. > > Also kernel .config file should also have CONFIG_DEVTMPFS and DEVTMPFS > as 'y'. Sorry, that should have been CONFIG_DEVTMPFS=y and CONFIG_DEVTMPFS_MOUNT=y Regards Stefan