hid_get_feature_report method
@brief Get a feature report from a HID device.
Set the first byte of @p data[] to the Report ID of the
report to be read. Make sure to allow space for this
extra byte in @p data[]. Upon return, the first byte will
still contain the Report ID, and the report data will
start in data1
.
@ingroup API @param dev A device handle returned from hid_open(). @param data A buffer to put the read data into, including the Report ID. Set the first byte of @p data[] to the Report ID of the report to be read, or set it to zero if your device does not use numbered reports. @param length The number of bytes to read, including an extra byte for the report ID. The buffer can be longer than the actual report.
@returns This function returns the number of bytes read plus one for the report ID (which is still in the first byte), or -1 on error. Call hid_error(dev) to get the failure reason.
Implementation
int hid_get_feature_report(
ffi.Pointer<hid_device> dev,
ffi.Pointer<ffi.UnsignedChar> data,
int length,
) {
return _hid_get_feature_report(
dev,
data,
length,
);
}