v0.20.5: the wheel learns to coast

getevent settled what the wheel can and can't tell us: och1970_holl_key
advertises KEY_UP and KEY_DOWN and nothing else -- no REL_WHEEL, no
resolution, because the och1970 is a Hall latch the driver quantises into
clicks. There is no sub-detent position to read without a kernel driver
change, so all the nuance has to come from *when* the detents arrive.

So a detent is now an impulse into a velocity rather than a jump. The list
coasts and eases out, and an impulse is worth up to 8x more when detents come
30 ms apart than when they come 220 ms apart -- squared, so the gain stays out
of the way while you're hunting for one row. Measured on the device: one
unhurried detent moves about half a row, twelve fast ones move forty-odd.
Turning back the other way kills the coast first, so a correction bites
instead of fighting the glide.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SKXUgsBBwe3qaHEjeV8ubP

This commit is contained in:

trav

2026-09-14 13:51:42 -07:00

co-authored by

Claude Opus 5

parent efa07b05c6

commit f091a545f5

8 changed files with 100 additions and 41 deletions

									
										andtunes/build.py
									
		+2
		-2
	
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				@@ -26,8 +26,8 @@ import sys

				import zipfile

				from pathlib import Path

				VERSION_NAME = "0.2.2"

				VERSION_CODE = 4

				VERSION_NAME = "0.2.3"

				VERSION_CODE = 5

				PACKAGE = "me.teafry.andtunes"

				MIN_SDK = 26