code/asusN7601ZM/audio/patch_audio.md

Patching the audio driver on rocky linux 9 kernel 5

yumdownloader --source kernel-modules
rpm -ivh kernel-5.14.0-284.11.1.el9_2.src.rpm

# get topdir
rpm --showrc | grep topdir
# $HOME/rpmbuild

cd $HOME/rpmbuild/SOURCES
unxz linux-5.14.0-284.11.1.el9_2.tar.xz
tar xvf linux-5.14.0-284.11.1.el9_2.tar 
cd linux-5.14.0-284.11.1.el9_2/sound/pci/hda

kdiff3 patch_realtek.c \
           /usr/src/kernels/audiopatch/linux-5.14.0-162.12.1.el9_1/sound/pci/hda/patch_realtek.c \
	   -o patch_realtek.c.new 


#create patch file 
diff -Naur patch_realtek.c.orig patch_realtek.c.new > patch_realtek.c.patch 
# patch the file 
cp patch_realtek.c patch_realtek.c.orig
patch -p0 patch_realtek.c < patch_realtek.c.patch 

# compile and install the driver 
make -C /lib/modules/`uname -r`/build M=$PWD
make -C /lib/modules/`uname -r`/build M=$PWD modules_install