CONTROL_ES0       265 drivers/sbus/char/envctrl.c 	writeb(CONTROL_ES0, i2c + PCF8584_CSR);  /* Send neg ack. */
CONTROL_ES0      1063 drivers/sbus/char/envctrl.c 	writeb(CONTROL_PIN | CONTROL_ES0 | CONTROL_ACK, i2c + PCF8584_CSR);