Add az01-specific scripts.

buildroot-customizations/board/akai/az01/rootfs_overlay/usr/local/bin/run-mixxx.sh

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+#!/bin/sh
+
+# which product are we running on?
+APPNAME=`cat /sys/firmware/devicetree/base/inmusic,product-code`
+
+# detect installation path of our custom scripts
+scriptspath="$(command -v setup-prerequisites.sh)"
+if [ -z "$scriptspath" ]; then
+  scriptspath="$(pwd)"
+else
+  scriptspath="$(dirname "$scriptspath")"
+fi
+
+# set up cpu assignment and other device stuff
+"$scriptspath"/setup-prerequisites.sh $APPNAME
+
+# test for an existing bus daemon, just to be safe
+if test -z "$DBUS_SESSION_BUS_ADDRESS" ; then
+  # if not found, launch a new one
+  eval `dbus-launch --sh-syntax`
+fi
+
+# set up screen/input rotation
+source "$scriptspath"/setup-screenrotation.sh $APPNAME
+
+# run upower if it is available
+if command -v upower; then
+  "$(dirname $(readlink -f $(command -v upower)))/../libexec/upowerd" &
+fi
+
+# run command in gdbserver if wanted
+if [ -n "${GDBSERVER:-}" ]; then
+  exec gdbserver :2345 mixxx "$@"
+fi
+
+exec mixxx "$@"

buildroot-customizations/board/akai/az01/rootfs_overlay/usr/local/bin/set-irq-affinity.sh

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+#!/bin/sh
+
+IRQ=$1
+CPU=$2
+echo "Setting" $IRQ "to CPU: "$CPU
+grep $IRQ /proc/interrupts | cut -d':' -f1 | tr -d " \t" | xargs -t -i sh -c 'echo $1 > /proc/irq/$2/smp_affinity_list' -- $CPU {}

buildroot-customizations/board/akai/az01/rootfs_overlay/usr/local/bin/setup-prerequisites.sh

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+#!/bin/sh
+
+APPNAME=$1
+
+# Increase priority to max for audio IRQ
+grep -h irq/.*ffb20000 /proc/*/stat 2>/dev/null | cut -d' ' -f1 | xargs -i chrt -f -p 99 {}
+# Setting GPU to CPU 1
+set-irq-affinity.sh ffa30000 1
+# Setting Audio to CPU 3
+set-irq-affinity.sh ffb20000 3
+# Setting Network to CPU 1
+set-irq-affinity.sh eth0 1
+
+if [ ! -e /sys/firmware/devicetree/base/serial@ff190000/control-surface ];
+then
+	# Control surface is on USB (not UART) so setting USB to CPU 1:
+	set-irq-affinity.sh ehci_hcd 1
+	set-irq-affinity.sh ff540000 1
+fi
+
+# Enable external SD Card interface
+echo external > /sys/bus/platform/devices/sd-mux/state
+
+# Set GPU governor to performance mode
+if [ $APPNAME == "JP21" ];
+then
+	echo simple_ondemand > /sys/devices/platform/ffa30000.gpu/devfreq/ffa30000.gpu/governor
+else
+	echo performance > /sys/devices/platform/ffa30000.gpu/devfreq/ffa30000.gpu/governor
+fi
+
+# Set midi output buffer size to max
+echo 524287 > /sys/module/snd_seq_midi/parameters/output_buffer_size
+
+# Disable vsync_on_pan, with the new Linux kernel vsync is on by default,
+# and this line would add a double vsync, thereby halving the framerate.
+# vsync_on_pan is a mechanism introduced by John Keeping
+echo 0 >/sys/class/graphics/fb0/vsync_on_pan
+
+# supressing debug output to avoid audio dropouts on USB/SD device plugging
+dmesg -n crit

buildroot-customizations/board/akai/az01/rootfs_overlay/usr/local/bin/setup-screenrotation.sh

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+#!/bin/sh
+
+APPNAME=$1
+
+panelRotationFile=/sys/firmware/devicetree/base/inmusic,panel-rotation
+touchRotationFile=/sys/firmware/devicetree/base/inmusic,touch-rotation
+
+[ -f $panelRotationFile ] && panelHex=`xxd -p -s2 -c2 $panelRotationFile` && panelDec=$((0x$panelHex))
+[ -f $touchRotationFile ] && touchHex=`xxd -p -s2 -c2 $touchRotationFile` && touchDec=$((0x$touchHex))
+
+if [ -n "$panelHex" ] && [ $(($panelDec % 90)) -eq 0 ]
+then
+	[ $panelDec -gt 180 ] && let panelDec=panelDec-360
+
+	export AIR_SCREEN_ROTATION=$panelDec
+	echo Screen rotation is set to $panelDec
+
+	if [ -n "$touchHex" ] && [ $(($touchDec % 90)) -eq 0 ]
+	then
+		[ $touchDec -gt 180 ] && let touchDec=touchDec-360
+
+		let rotation=panelDec-touchDec
+		export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=rotate=$rotation
+		echo Touch rotation is set to $rotation
+	fi
+else
+	echo Screen rotation has not been set
+fi
+