synaptics_special_read
res = synaptics_special_read(psc, SYNAPTICS_EXTENDED_QUERY, resp);
res = synaptics_special_read(psc,
res = synaptics_special_read(psc, SYNAPTICS_READ_CAPABILITIES, resp);
res = synaptics_special_read(psc, SYNAPTICS_READ_MAX_COORDS,
res = synaptics_special_read(psc, SYNAPTICS_READ_MIN_COORDS,