#define AO_PANIC_STACK 12 /* Stack overflow */
#define AO_PANIC_SPI 13 /* SPI communication failure */
#define AO_PANIC_CRASH 14 /* Processor crashed */
+#define AO_PANIC_BUFIO 15 /* Mis-using bufio API */
#define AO_PANIC_SELF_TEST_CC1120 0x40 | 1 /* Self test failure */
#define AO_PANIC_SELF_TEST_HMC5883 0x40 | 2 /* Self test failure */
#define AO_PANIC_SELF_TEST_MPU6000 0x40 | 3 /* Self test failure */