ChibiOS Free Embedded RTOS

The QSPI devices I've looked at have some auxiliary functionality - a multi-byte unique ID, and a certain amount of OTP memory.

Any thoughts on how this could best be exposed to the outside world?

My initial thought is a single ioctl()-like interface, to make it simple to add additional options later.

Hi,

It is already possible to send custom commands by calling the inner functions, currently there is no official API, it could be an idea.

Giovanni

I implemented this using the threatened ioctl()-like interface, as the attached.
Mostly to give some ideas - maybe add a pointer in the VMT to the ioctl() routine. And there are some other error codes which could usefully be added.

Just revisiting this - any comments?

Not yet, I will do another pass on the flash driver later, I am on another thing right now.

Giovanni

No problem; I'll stick with what I've got for now (or maybe generalise it a bit)