Radek Maciaszek rathko

Commander ST fw 2.x (tested on Corsair iCUE H170i ELITE CAPELLIX AIO) — single-shot apply workaround

A standalone Python script for users hitting either of these symptoms on a Corsair Commander Core / Commander ST running firmware 2.x:

liquidctl set <ch> speed T P T P … fails with IndexError: index out of range — _read_data hard-codes three HID read chunks (~181 bytes) and the device's full curve table for 7 channels at 7 points each exceeds that.
liquidctl status (or any set) times out after ~5-25 invocations, only recovers with usbreset — the device's firmware silently stops responding to HID after a burst of operations, while the USB stack and kernel hidraw layer remain healthy (dmesg is silent during the failure; lsusb -v still works).

	library(digest)
	getSymbols(c("^VIX"))
	vix = VIX[,"VIX.Adjusted"]
	vix.hash = apply(vix, 2, function(col) sapply(col, digest, algo="md5"))
	vix.hash = apply(vix.hash, 2, function(col) { as.numeric(paste("0x", col, sep="")) / 15e+38 } )

	old.par <- par(mfrow=c(1, 2))
	plot(vix, ylim=c(10, 120), ylab='')
	plot(vix.hash, ylim=c(0, 1), ylab='')
	par(old.par)

	environment:
	VIRTUAL_HOST: example.com
	LETSENCRYPT_HOST: example.com
	LETSENCRYPT_EMAIL: youremail@example.com