HPI_MICROPHONE_PHANTOM_POWER
if (phm->u.c.attribute == HPI_MICROPHONE_PHANTOM_POWER)
if (phm->u.c.attribute == HPI_MICROPHONE_PHANTOM_POWER)
return hpi_control_param_set(h_control, HPI_MICROPHONE_PHANTOM_POWER,
HPI_MICROPHONE_PHANTOM_POWER, &on_off);