D435 linux update FW with C API error

[csp23]

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Required Info
Camera Model	D435
Firmware Version	05.12.07.100
Operating System & Version	Linux
Kernel Version (Linux Only)	4.9.37
Platform	raspberry
SDK Version	2.42.0
Language	C
Segment	Robot

Issue Description

<Describe your issue / question / feature request / etc..>

fail with API rs2_update_firmware() from rs_device.h

function using( reference example/C/rs-depth.c ) :
rs2_creat_context()..........create_context
-->rs2_query_devices().........get device_list
---->rs2_create_device()..........get device
------>rs2_update_firmware()....update with device and FW img

• error message:
  rs_error was raised when calling rs2_update_firmware(device:0xed18a0, fw_image:0x7f72bff010):
  Object does not support "librealsense::update_device_interface" interface!
• my opinion:
  the object return from function rs2_create_device() dose support update FW
• ps:
  i could successfully update with tools/rs-fw-update but still hope using API

[MartyG-RealSense]

Hi @csp23 I do not have a C-specific example of updating firmware through scripting, though some general advice about structuring an updater mechanism that uses update_device() is provided in the link below.

#4416 (comment)

An example of how a firmware updater script may be structured in Python is here:

#4416 (comment)

It is also worth bearing in mind that the firmware file that is being used should be a digitally signed one - a backup firmware file will not be sufficient.

#7093 (comment)

Although checking and updating firmware through scripting is supported, updating with the rs-fw-update tool or the RealSense Viewer are the recommended methods.

[csp23]

Thanks a lot

i fix it with cast device first

• it worked with API using:

rs2_creat_context()..........create_context
-->rs2_query_devices().........get device_list
---->rs2_create_device()..........get device
------->rs2_enter_update_state()......change device state and reconnect realsense on usb
--------->rs2_delete_device();
----------->rs2_delete_device_list();
------------->rs2_delete_context();
==============get reconnected device===========
rs2_creat_context()..........create_context
-->rs2_query_devices().........get device_list
---->rs2_create_device()..........get device
------>rs2_update_firmware()....update with device and FW img

done

[MartyG-RealSense]

Great to hear that you were successful @csp23 - thanks very much for sharing your C method with the RealSense community!

[MartyG-RealSense]

Case closed due to solution achieved and no further comments received.