This PR is a follow-up of issue #15856 and the mailing list proposal "Proposal: Common IOCTL API for RF Modulation Technologies"
Before this PR, the IOCTL API for character-driven RF devices lacked a common
interface across different modulation technologies, such as LoRa, FSK, and
OOK. The result was, driver-specific IOCTL commands were created even when they
could be shared across multiple radios. This fragmentation made
application portability more difficult to maintain.
This PR will add a common API that can be shared across all new drivers.
Such as
* LoRa
* FSK
* OOK / ASK
* read() return struct
Signed-off-by: Kevin Witteveen (MartiniMarter) <kevinwit1999@gmail.com>
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