Hello Greg On Thu, Jun 11, 2015 at 5:52 AM, Greg KH <greg@xxxxxxxxx> wrote: > On Wed, Jun 10, 2015 at 02:39:35PM +0200, Ricardo Ribalda Delgado wrote: >> Nowadays there is a kernel land implementation of ethercat master, but >> it is not merged (and it is definately not an easy job). And a >> software implementation http://fh-soft.de/src/ethercat-userspace.html > > Why not attempt to merge it? I have my doubts that this is the best option. If you need real time performance you need to run it in kernel-space where you need a ethercat protocol driver, a patch for your network card and an kernel module for your application. Without strict real-time requirements, you just need a userspace library and a userspace application By looking at our applications, The userspace sollution is more than enough for our requirements. The problem appears when we want to use the serial adapter. I want to keep using the serial API, but I cannot achieve this from userspace. > >> My hope is that there is something like uinput, but for serial >> devices,i.e. I make a userland program that looks like a normal serial >> device to the other applications. > > A serial device that does what exactly? What's wrong with the "normal" > serial userspace api the kernel provides? I want to use the serial userspace api. But I do not want to write a kernel module. I really like the design of uinput, and I would like to use something similar here. > > thanks, > > greg k-h -- Ricardo Ribalda _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
