The file consists out of a 0x200 big header (though the actual header is only 0x30 bytes, the rest is zerofilled), plus data whose size is indicated in the header.

Used for mapping touch ADC values to display pixel co-ordinates.

[4096, 4096] –> [320, 240]

[RawX, RawY] –> [PointX, PointY]

Usually [PointX0, PointY0] is placed around 25% from the top-left corner, and the same for [PointX1, PointY1] except 25% from the bottom-right corner. This offsetting is needed because the touch film starts to distort outside of that rectangle, which would skew the touch results near the center of the screen.

Contains the centering position of the circle pad. For other circle pad settings, see circle pad extra.

These values are written to MCU register 0x03 and 0x04 respectively. They both set the display contrast voltage.

Somewhat misleading, these values are actually used for clamping the MCU’s raw slider readings to comprehensible values.

There is a delay between switching the parallax barrier, and adjusting the backlight. These delay values determine how many VBlank events to wait on before switching the backlight curves to the appropriate mode.

This is needed only to prevent epillepsy from analog jitter causing unwanted mode switches, and both values are usually always set to 1 or 2.

If 0x1FF81006 is 3 or 4 or 7 or 8 or 9 then the callibration data is read from the EEPROM using the i2c:EEP service command 0x001000C0, using offset 0x000 for HWCAL0, and offset 0x800 for HWCAL1. Otherwise attempt is made to read CTRNAND:/ro/sys/HWCAL(0|1).dat instead.