Module eink 

E-ink framebuffer constants, MXCFB ioctl structs, and row-diff helper.

The Fb struct (mmap + ioctl + present()) lives in crate::device::fb; it takes raw &[u8] RGB565 buffers, so it has no pixel-wrapper dependency.

Structs

FbFixScreeninfo

FbVarScreeninfo

MxcfbRect

MxcfbUpdateData

Enums

RenderScenario

Constants

FBIOGET_FSCREENINFO

FBIOGET_VSCREENINFO

MXCFB_SEND_UPDATE

MXCFB_WAIT_FOR_UPDATE_COMPLETE

WAVE_A2

WAVE_DU

WAVE_GC16

WAVE_GL16

WAVE_GLD16

WAVE_GLR16

WAVE_INIT

Functions

diff_rows

Compare two RGB565 byte buffers (same dimensions) and return the dirty row range aligned to 8-pixel boundaries. Returns None when buffers are identical.

waveform_for

Pick the best waveform for a given render scenario on Kaleido 3 color e-ink.