r0 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/power/pm_debug_messages', 0x22902, 0x0) pwritev2(r0, &(0x7f0000000040)=[{&(0x7f00000000c0)="c3", 0x1}], 0x1, 0x0, 0x0, 0x0)