Set USB Device Product name on runtime

[Phobios]

Hi,

I'm using the CDC ACM USB feature and setting the device name with a KConfig parameter.

CONFIG_USB_DEVICE_PRODUCT="MyUsbDevice CDC ACM"

I want to have my firmware version in the name for easier development among test devices.

Is there a way to set this on runtime, instead with a KConfig parameter?

NRF52840, NCS 2.5.1

Thanks and Best Regards,

Phobios

[Håkon Alseth]

Hi,

 

Windows will cache your device driver based on VID/PID:

https://stackoverflow.com/questions/41644081/windows-10-clean-out-usb-enumeration-driver-cruft

 

This means that you cannot dynamically update a USB descriptor on-the-fly without changing the VID/PID.

You should rather return the firmware version via USB data communication, if required.

 

Kind regards,

Håkon