HelenOS sources

KC_NMINUS         121 uspace/drv/hid/adb-kbd/ctl.c 	[0x4e] = KC_NMINUS,
KC_NMINUS         148 uspace/drv/hid/atkbd/atkbd.c 	[0x7b] = KC_NMINUS,
KC_NMINUS         136 uspace/drv/hid/usbhid/kbd/conv.c 	[0x56] = KC_NMINUS,
KC_NMINUS         141 uspace/drv/hid/xtkbd/xtkbd.c 	[0x4a] = KC_NMINUS,
KC_NMINUS         169 uspace/srv/hid/input/ctl/sun.c 	[0x47] = KC_NMINUS,
KC_NMINUS         178 uspace/srv/hid/input/layout/ar.c 	[KC_NMINUS] = '-',
KC_NMINUS         207 uspace/srv/hid/input/layout/cz.c 	[KC_NMINUS] = '-',
KC_NMINUS         186 uspace/srv/hid/input/layout/fr_azerty.c 	[KC_NMINUS] = '-',
KC_NMINUS         187 uspace/srv/hid/input/layout/us_dvorak.c 	[KC_NMINUS] = '-',
KC_NMINUS         181 uspace/srv/hid/input/layout/us_qwerty.c 	[KC_NMINUS] = '-',
HelenOS homepage, sources at GitHub