adding new driver to kernel src and building rpm

[Adam Williamson]

On Sun, 2015-01-25 at 06:50 +0000, Amadeus W.M. wrote:
> I'm trying to do the following:
> 
> 1) add the smi2021 driver for EasyCap Somagic usb frame grabbers 
> into the
> kernel tree
> 2) compile the kernel with smi2021 as a module
> 3) build the rpm.
> 
> I got the driver from Jon Arne Jorgensen's kernel branch on github:
> 
> https://github.com/jonjonarnearne/smi2021
> 
> then tried to follow these instructions:
> 
> https://fedoraproject.org/wiki/Building_a_custom_kernel
> 
> but the whole thing fails with this eror:
> 
> 
> Patch100000: smi2021.patch
> + case "$patch" in
> + patch -p1 -F1 -s
> + chmod +x scripts/checkpatch.pl
> + touch .scmversion
> + mkdir configs
> + for i in '*.config'
> + mv kernel-3.17.8-aarch64.config .config
> ++ head -1 .config
> ++ cut -b 3-
> + Arch=arm64
> + make ARCH=arm64 listnewconfig
> + grep -E '^CONFIG_'
> + '[' -s .newoptions ']'
> + cat .newoptions
> CONFIG_VIDEO_SMI2021
> + exit 1
> error: Bad exit status from /var/tmp/rpm-tmp.sASN4F (%prep)
> 
> Please help, I'm at the end of my wits. Thanks!

You just have to put the new config option in one of the config* files 
that's part of the kernel package git checkout itself - one that gets 
included in the appropriate arch builds. If you want to build the 
driver as a module for all arches, put CONFIG_VIDEO_SMI2021=m in 
config-generic , for instance.
-- 
Adam Williamson
Fedora QA Community Monkey
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