Hello Tom, Two years ago, I managed to get an USB channel based on grpc 1.35 , you can see this work on my personal grpc fork: https://github.com/fmartinsons/grpc/tree/grpc-usb-1.35.0
Sadly, from what I remember, I didn't manage to make it work on my target machine (I got spurious USB disconnections). I didn't have the time to continue and I don't plan to work on it again but feel free to get the code and try it by yourself. I'd appreciate it greatly if you manage to have a working code and publish it. Have a nice day. On Wed, 10 May 2023 at 05:26, Tom Stoffer <[email protected]> wrote: > Hi Frédéric > > I would be interested in seeing this MR, we are looking at implementing > something like this. Did your code get used in production? > > Tom > > On Thursday, February 25, 2021 at 12:07:01 AM UTC+13 Frédéric Martinsons > wrote: > >> >> Anybody there ? >> >> I think I'll made the above mentionned merge request and we will see if >> it is accepted or not. >> On Saturday, 13 February 2021 at 11:49:05 UTC+1 Frédéric Martinsons wrote: >> >>> >>> There is another thread talking about USB support: >>> https://groups.google.com/g/grpc-io/c/MZCVUShRMkM/m/y3T_fs8iAQAJ but I >>> cannot answer there since my messages are automatically deleted (don't know >>> why) >>> >>> >>> On Saturday, 13 February 2021 at 09:55:42 UTC+1 Frédéric Martinsons >>> wrote: >>> >>>> Hello all, >>>> >>>> Some years ago we had the exact same use case where we have an android >>>> application which drive an embedded devices (in USB Accessory Mode). The >>>> only way to communicate with this device is through USB channel and we >>>> wanted to use gRPC. >>>> So we develop the USB transport channel in gRPC bask in 2018 (based on >>>> gRPC v1.13.0). >>>> The guy from our teams that made these patches had now leaved but I'll >>>> be glad to submit a patch series if the USB support is still foreseen to be >>>> support but I may not be able to answer all the questions about tricks that >>>> came in this code. >>>> >>>> Do you want to receive a merge request ? >>>> >>>> Thanks for the good works gRPC guru. >>>> >>>> On Thursday, 8 February 2018 at 17:18:21 UTC+1 [email protected] >>>> wrote: >>>> >>>>> Mark, as Abhishek mentioned, it is quite useful in cases where a >>>>> target device (usually embedded) has no networking. Thanks Vijay, I'll >>>>> have >>>>> a look at your suggestions. >>>>> >>>>> Regards >>>>> /Robert >>>>> >>>>> 2018-02-07 22:31 GMT+01:00 'Vijay Pai' via grpc.io < >>>>> [email protected]>: >>>>> >>>>>> As Mark mentioned, it's not on our roadmap, but if you wanted to put >>>>>> one together, I can suggest >>>>>> https://github.com/grpc/grpc/blob/master/doc/core/transport_explainer.md >>>>>> for an idea of what transports need to do. If the goal is a simple >>>>>> message-oriented transport without reference to complex flow control, I >>>>>> can >>>>>> suggest using the in-process transport as a model for how to build a >>>>>> transport, as it's only a few hundred lines of code and implements the >>>>>> transport ops required to actually have working RPCs for its context; >>>>>> this >>>>>> might make a lot of sense if your controller is memory-mapped. >>>>>> Alternatively, if your controller is mapped as a file, a path forward >>>>>> might >>>>>> be to make a new endpoint akin to the UDS endpoint. This would mean that >>>>>> you'd be speaking HTTP/2 over your HID, but again it may be a fairly >>>>>> simple >>>>>> integration. >>>>>> >>>>>> Good luck! >>>>>> >>>>>> - Vijay >>>>>> >>>>>> On Friday, February 2, 2018 at 8:51:23 PM UTC-8, Robert Bielik wrote: >>>>>>> >>>>>>> Hi all, >>>>>>> >>>>>>> Has there been any work on using USB HID as a gRPC transport ? >>>>>>> >>>>>>> Regards >>>>>>> /Robert >>>>>>> >>>>>>> -- >>>>>> You received this message because you are subscribed to a topic in >>>>>> the Google Groups "grpc.io" group. >>>>>> To unsubscribe from this topic, visit >>>>>> https://groups.google.com/d/topic/grpc-io/rCOTPM65A7U/unsubscribe. >>>>>> >>>>> To unsubscribe from this group and all its topics, send an email to >>>>>> [email protected]. >>>>> >>>>> >>>>>> To post to this group, send email to [email protected]. >>>>>> Visit this group at https://groups.google.com/group/grpc-io. >>>>>> >>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/grpc-io/e25acae8-c505-47f6-a108-23d4d5d61a83%40googlegroups.com >>>>>> <https://groups.google.com/d/msgid/grpc-io/e25acae8-c505-47f6-a108-23d4d5d61a83%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>> >>>>> >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> -- > You received this message because you are subscribed to the Google Groups " > grpc.io" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/grpc-io/6b468554-c174-4b81-9238-5a8f6cd02f86n%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/6b468554-c174-4b81-9238-5a8f6cd02f86n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. 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