Scott Duensing c8ccedf569 Change default FIFO trigger from 8 to 1, yield CPU when idle ... Default RX FIFO trigger level of 8 (FCR_TRIG_8) caused exactly 8 characters to buffer in hardware before the ISR fired. Change default to 1 (FCR_TRIG_1) for responsive single-character interrupts while keeping the 16-byte FIFO enabled as a safety buffer. COMnRxTRIGGER SYSTEM.INI key still allows override. The PM_NOYIELD polling loop never yielded the CPU timeslice, starving other Windows applications. Add Yield call when no serial data is flowing so other apps get CPU time. During bulk data flow HasData stays true and the loop runs at full speed. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>		2026-03-01 20:44:14 -06:00
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commdrv.c	Change default FIFO trigger from 8 to 1, yield CPU when idle	2026-03-01 20:44:14 -06:00
commdrv.def	Rename output from COMM.DRV to KPCOMM.DRV to avoid clashing with stock driver	2026-02-24 20:07:45 -06:00
commdrv.h	Replace event-driven WM_COMMNOTIFY architecture with polling main loop	2026-03-01 19:01:40 -06:00
isr.c	Replace event-driven WM_COMMNOTIFY architecture with polling main loop	2026-03-01 19:01:40 -06:00
makefile	Rename output from COMM.DRV to KPCOMM.DRV to avoid clashing with stock driver	2026-02-24 20:07:45 -06:00