Am 11.03.19 um 18:02 schrieb Sven Van Asbroeck: > On Fri, Feb 8, 2019 at 9:14 AM Greg KH <gre...@linuxfoundation.org> wrote: >> >> Well, who wants this code? Who uses it? Find those people and get them >> to review it. If no one wants it or uses it, that kind of implies that >> it's not needed :) > > We have customers who (will) talk to this ABI from userspace, but they are > not 'Linux-y' enough to come to the mailing list and meaningfully review > the userspace ABI. > > IMHO the current reality of Fieldbus on Linux is companies rolling their own > proprietary out-of-tree interfaces and drivers. They do this partly because > there is no existing community or infrastructure. So there is no incentive > to be involved with mainline, which could also explain why no-one is > commenting > on this Fieldbus ABI. > > Chicken-and-egg problem ? > > Greg, could I convince you to take this Fieldbus subsystem in drivers/staging? > Perhaps its presence may kickstart or seed a Linux Fieldbus community. > Being in staging/ also means that we can tweak the userspace ABI to our > heart's content if more people/requirements come in. > > If there's been no meaningful activity in, say, one year from now, you may > decide to send this whole subsystem to /dev/null.
I have two unfinished drivers that might benefit, for Hilscher netX 52 (multi-protocol) and Microchip LAN9252 (EtherCAT), as well as a Linux port for Infineon XMC4500 that might be expanded to XMC4800 (EtherCAT). But currently -ENOTIME for review or development, sorry. Staging sounds like a plan, if that allows us to still break the ABI. Can't make any guarantees whether I might get to them within one year, as my LoRa project has been turning into a Black Hole. ;) Are you at Netdev 0x13 later this month? That might be an opportunity to discuss the network-related parts such as Profinet and EtherCAT. Cheers, Andreas https://github.com/afaerber/netx-module https://github.com/afaerber/lan9252-module -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg)
