template<class T> void set_pu(uvc_device_handle_t * devh, int subdevice, uint8_t unit, uint8_t control, int value)
{
const int REQ_TYPE_SET = 0x21;
unsigned char buffer[4];
if(sizeof(T)==1) buffer[0] = value;
if(sizeof(T)==2) SHORT_TO_SW(value, buffer);
if(sizeof(T)==4) INT_TO_DW(value, buffer);
int status = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR, control << 8, unit << 8 | (subdevice*2), buffer, sizeof(T), 0);
if(status < 0) throw std::runtime_error(to_string() << "libusb_control_transfer(...) returned " << libusb_error_name(status));
if(status != sizeof(T)) throw std::runtime_error("insufficient data written to usb");
}
/** @ingroup ctrl
* @brief Sets the WHITE_BALANCE_COMPONENT control.
* @param devh UVC device handle
* @param blue TODO
* @param red TODO
*/
uvc_error_t uvc_set_white_balance_component(uvc_device_handle_t *devh, uint16_t blue, uint16_t red) {
uint8_t data[4];
uvc_error_t ret;
SHORT_TO_SW(blue, data + 0);
SHORT_TO_SW(red, data + 2);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the DIGITAL_WINDOW control.
* @param devh UVC device handle
* @param window_top TODO
* @param window_left TODO
* @param window_bottom TODO
* @param window_right TODO
* @param num_steps TODO
* @param num_steps_units TODO
*/
uvc_error_t uvc_set_digital_window(uvc_device_handle_t *devh, uint16_t window_top, uint16_t window_left, uint16_t window_bottom, uint16_t window_right, uint16_t num_steps, uint16_t num_steps_units) {
uint8_t data[12];
uvc_error_t ret;
SHORT_TO_SW(window_top, data + 0);
SHORT_TO_SW(window_left, data + 2);
SHORT_TO_SW(window_bottom, data + 4);
SHORT_TO_SW(window_right, data + 6);
SHORT_TO_SW(num_steps, data + 8);
SHORT_TO_SW(num_steps_units, data + 10);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_CT_DIGITAL_WINDOW_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the REGION_OF_INTEREST control.
* @param devh UVC device handle
* @param roi_top TODO
* @param roi_left TODO
* @param roi_bottom TODO
* @param roi_right TODO
* @param auto_controls TODO
*/
uvc_error_t uvc_set_digital_roi(uvc_device_handle_t *devh, uint16_t roi_top, uint16_t roi_left, uint16_t roi_bottom, uint16_t roi_right, uint16_t auto_controls) {
uint8_t data[10];
uvc_error_t ret;
SHORT_TO_SW(roi_top, data + 0);
SHORT_TO_SW(roi_left, data + 2);
SHORT_TO_SW(roi_bottom, data + 4);
SHORT_TO_SW(roi_right, data + 6);
SHORT_TO_SW(auto_controls, data + 8);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_CT_REGION_OF_INTEREST_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_wb_temperature(uvc_device_handle_t *devh, uint16_t wb_temperature) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(wb_temperature, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL << 8,
devh->info->ctrl_if.processing_unit_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_digital_mult_limit(uvc_device_handle_t *devh, uint16_t limit) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(limit, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL << 8,
devh->info->ctrl_if.processing_unit_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_saturation(uvc_device_handle_t *devh, uint16_t saturation) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(saturation, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_SATURATION_CONTROL << 8,
devh->info->ctrl_if.processing_unit_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_brightness(uvc_device_handle_t *devh, short brightness) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(brightness, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_BRIGHTNESS_CONTROL << 8,
devh->info->ctrl_if.processing_unit_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_backlight_compensation(uvc_device_handle_t *devh, short comp) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(comp, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_BACKLIGHT_COMPENSATION_CONTROL << 8,
devh->info->ctrl_if.processing_unit_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_zoom_abs(uvc_device_handle_t *devh, uint16_t zoom) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(zoom, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_CT_ZOOM_ABSOLUTE_CONTROL << 8,
devh->info->ctrl_if.input_term_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_iris_abs(uvc_device_handle_t *devh, uint16_t iris) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(iris, data);
ret = libusb_control_transfer(devh->usb_devh, REQ_TYPE_SET, UVC_SET_CUR,
UVC_CT_FOCUS_ABSOLUTE_CONTROL << 8,
// 1 << 8, /* = fixed ID(00) and wrong VideoControl interface descriptor subtype(UVC_VC_HEADER) on original libuvc */
devh->info->ctrl_if.input_term_descs->request,
data, sizeof(data), CTRL_TIMEOUT_MILLIS);
if (LIKELY(ret == sizeof(data)))
return UVC_SUCCESS;
else
return ret;
}
uvc_error_t uvc_set_focus_abs(uvc_device_handle_t *devh, short focus) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(focus, data);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_CT_FOCUS_ABSOLUTE_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the ROLL_ABSOLUTE control.
* @param devh UVC device handle
* @param roll TODO
*/
uvc_error_t uvc_set_roll_abs(uvc_device_handle_t *devh, int16_t roll) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(roll, data + 0);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_CT_ROLL_ABSOLUTE_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the DIGITAL_MULTIPLIER_LIMIT control.
* @param devh UVC device handle
* @param multiplier_step TODO
*/
uvc_error_t uvc_set_digital_multiplier_limit(uvc_device_handle_t *devh, uint16_t multiplier_step) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(multiplier_step, data + 0);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the WHITE_BALANCE_TEMPERATURE control.
* @param devh UVC device handle
* @param temperature TODO
*/
uvc_error_t uvc_set_white_balance_temperature(uvc_device_handle_t *devh, uint16_t temperature) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(temperature, data + 0);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the GAMMA control.
* @param devh UVC device handle
* @param gamma TODO
*/
uvc_error_t uvc_set_gamma(uvc_device_handle_t *devh, uint16_t gamma) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(gamma, data + 0);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_GAMMA_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the SHARPNESS control.
* @param devh UVC device handle
* @param sharpness TODO
*/
uvc_error_t uvc_set_sharpness(uvc_device_handle_t *devh, uint16_t sharpness) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(sharpness, data + 0);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_SHARPNESS_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
/** @ingroup ctrl
* @brief Sets the SATURATION control.
* @param devh UVC device handle
* @param saturation TODO
*/
uvc_error_t uvc_set_saturation(uvc_device_handle_t *devh, uint16_t saturation) {
uint8_t data[2];
uvc_error_t ret;
SHORT_TO_SW(saturation, data + 0);
ret = libusb_control_transfer(
devh->usb_devh,
REQ_TYPE_SET, UVC_SET_CUR,
UVC_PU_SATURATION_CONTROL << 8,
1 << 8,
data,
sizeof(data),
0);
if (ret == sizeof(data))
return UVC_SUCCESS;
else
return ret;
}
