usb: device_next: allow string descriptor index to be updated
Support for multiple instances of a class implementation,
and the ability to register an instance to a configuration
at runtime, requires a mechanism to add a string descriptor
and update its index based on the total number of descriptors.
We also need to handle some special string descriptors like
Product or Serial Number provided by the application.
Marked as such by using specific macros, these descriptors
can be sorted out by the stack and the device descriptor
indexes are updated automatically.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
3 files changed
