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HID: steelseries: Correct Arctis 9 battery calibration range

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Map the Arctis 9 raw battery value over 0x64 (empty) to 0x9a (full)
instead of 0x68 to 0x9d. These values match the HeadsetControl project
[1] and fit the calibration points from an independent reverse
engineering of the battery tray (about 25% at raw 112, 50% at raw 125)
[2].

I do not have this headset. The values come from those references and
were not measured directly.

[1] https://github.com/Sapd/HeadsetControl/blob/master/lib/devices/steelseries_arctis_9.hpp
[2] https://magnier.io/reverse-engineering-arctis-9-battery-tray/

Signed-off-by: Sriman Achanta <srimanachanta@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
Sriman Achanta 2026-08-03 15:15:50 -04:00 committed by Jiri Kosina
parent 06529560b0
commit b8ae111432
1 changed files with 1 additions and 1 deletions
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2
drivers/hid/hid-steelseries-arctis.c
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@ -141,7 +141,7 @@ static void steelseries_arctis_9_parse_status(struct steelseries_device *sd,
if (data[0] == 0xaa && data[1] == 0x01) {
sd->headset_connected = true;
sd->battery_charging = (data[4] == 0x01);
sd->battery_capacity = steelseries_map_capacity(data[3], 0x68, 0x9d);
sd->battery_capacity = steelseries_map_capacity(data[3], 0x64, 0x9a);
} else {
/* Device off: 0x55 (no status) or 0x03 (stale status). */
sd->headset_connected = false;