Hi Fabio, On Thu, May 6, 2021 at 4:49 AM Fabio Aiuto <fabioaiuto83@xxxxxxxxx> wrote: > > I'm trying to make my way in linux kernel device driver development and > hopefully find a job soon. If the task 'moving fieldbus out of staging' will > give me opportunity to play with real hardware, and so gain more experience, > we can talk about it. Thank you so much for the offer, I really appreciate it ! The fieldbus subsystem sits in staging mainly because it's in use by only a single company. Greg KH was absolutely right to insist that this had to go into staging: a subsystem is different from a simple driver, and can only thrive if it's actively used by a wide community. You can see this in the subsystem's TODO: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/staging/fieldbus/TODO?h=v5.12 In short, this cannot be taken out of staging by "pure technical work". Except if you had a fieldbus client device on your hands, and you wanted to talk to it through this subsystem. Sven
