A command line program for Miyoo devices (bittboy, pocket go v1, powkiddy v90/q90) for talking to miyoo-specific linux kernel modules. It can set "versions", volume, and turn rumble on/off.

miyooctl [-h] [-i] [-v] [-V volume(0-10)] [-k keypad_ver(1-4)] [-m rumble_ver(1-3)] [-M rumble_mode(0-1)] [-s screen_ver(1-4)] [-f fpbp_hexbyte]

• -h prints the above help line
• -i prints the information that the modules report (currently the screen version, fp/bp, and volume)
• -v verbose: print what is supposed to be happening
• -V sets the volume; range 0 to 10
• -k sets the keypad version; range 1 to 4. Note this affect how your keypad works - an incorrect version can make your keypad stop working until you shut down the device.
• -m sets the vibration/rumble motor version; range 1-3. (Not sure that this actually works.)
• -M sets the vibration/rumble motor on/off; 0=on, 1=off
• -s sets the screen version; range 1 to 4. Note that an incorrect version will effectively disable your screen until you shut down the device.
• -f sets FP/BP for the screen driver

Note: In the latest Miyoo cfw builds you can use it in the normalboot.custom.sh bash file located on boot/variants/<CONSOLE_VARIANT>

A toolchain for cross-compiling is required.

Inspect the Makefile and adjust to your setup (e.g. PREFIX). It is also possible to specify these on command line, e.g. make PREFIX=arm-linux-gnueabi-.

Run make.

This is "front porch" and "back porch" setting for the LCD controller. The expected format is a single byte in hex format, so '00' to 'FF'. The upper four bits are FP value, the lower four bits are BP value. So, for example, A9 will set FP to 10 and BP to 9.

For example, in the screen "version 2", this is what page 263 of ST7789V datasheet refers to.

You can build the original version with make PROG=miyooctl_v1 SOURCES=main_v1.c. Note that the calling parameters and functionality is somewhat different. Remember to use miyooctl_v1 instead miyooctl in your terminal/bash file.

The commands for this version are:

• volume gets colume
• volume X sets volume to X
• version gets version
• setversion setss version based on fbdriver
• setversion X sets version to X (BB 2.5/2 use 1, BB 3/35 PG use 3)

• Original version by James O'Farrell
• Rewrite (v2) by flabbergast