1*d40befedSKamel BouharaWhat: /sys/devices/platform/.../power_on_reason 2*d40befedSKamel BouharaDate: June 2023 3*d40befedSKamel BouharaKernelVersion: 6.5 4*d40befedSKamel BouharaContact: Kamel Bouhara <kamel.bouhara@bootlin.com> 5*d40befedSKamel BouharaDescription: Shows system power on reason. The following strings/reasons can 6*d40befedSKamel Bouhara be read (the list can be extended): 7*d40befedSKamel Bouhara "regular power-up", "RTC wakeup", "watchdog timeout", 8*d40befedSKamel Bouhara "software reset", "reset button action", "CPU clock failure", 9*d40befedSKamel Bouhara "crystal oscillator failure", "brown-out reset", 10*d40befedSKamel Bouhara "unknown reason". 11*d40befedSKamel Bouhara 12*d40befedSKamel Bouhara The file is read only. 13