envctrl_write_chip
static int envctrl_write_chip(struct envctrlunit *, int, int, int,
status = envctrl_write_chip(unitp, temp.type, temp.chip_num,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV6,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8591,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV0,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV0,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV0,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV0,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV0,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV0,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV6,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8574A, EHC_DEV7,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8591,
status = envctrl_write_chip(unitp, ENVCTRL_PCF8591, EHC_DEV2, 0,
status = envctrl_write_chip(unitp,