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backend: mipi dfu default nodes #12743

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Mar 12, 2024
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backend: mipi dfu default nodes #12743

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12 changes: 11 additions & 1 deletion src/linux/backend-v4l2.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -886,7 +886,17 @@ namespace librealsense
// assign unique id for mipi by appending camera id to bus_info (bus_info is same for each mipi port)
// Note - jetson can use only bus_info, as card is different for each sensor and metadata node.
info.unique_id = bus_info + "-" + std::to_string(cam_id); // use bus_info as per camera unique id for mipi
info.dfu_device_path = "/dev/d4xx-dfu504"; // Use legacy DFU device node used in firmware_update_manager
// Get DFU node for MIPI camera
std::array<std::string, 2> dfu_device_paths = {"/dev/d4xx-dfu504", "/dev/d4xx-dfu-30-0010"};
for (const auto& dfu_device_path: dfu_device_paths) {
int vfd = open(dfu_device_path.c_str(), O_RDONLY | O_NONBLOCK);
if (vfd >= 0) {
// Use legacy DFU device node used in firmware_update_manager
info.dfu_device_path = dfu_device_path;
::close(vfd); // file exists, close file and continue to assign it
break;
}
}
info.conn_spec = usb_specification;
info.uvc_capabilities = get_dev_capabilities(dev_name).device_caps;

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