Hi Florian, I didn't follow all stuff regarding FPGA manager and I can't remember the reasons against user interfaces. Alan probably knows. Thanks, Michal On 10.7.2016 23:28, Florian Fainelli wrote: > Hi all, > > I just wrote a FPGA manager driver for the TS-7300 board which features > an Altera Cyclone II on board. While the finished solution is my case > might be something like the MFD driver for the FPGA devices requesting > the bitstream load and registering the different devices it exposes, > during development it is nice to exercise the FPGA manager driver to > load something: > > - a quick way is to add a pair of sysfs attributes to define the > bitstream filename and to trigger the load > > - offer a more consistent and robust interface through e.g; a character > device that you can write/read/poll to see the loading progress about > > - have the driver exposing FPGA peripherals be exposing an user space > interface to trigger a (re)load/(re)/configuration, although that's > really something that belongs in the FPGA manager it seems > > I am mostly curious if these were taken into account during the initial > design and it is agreed upon that yes these are some of options and that > userspace loading is just anecdotal we do not need any userspace > interface, or if this is just missing and we want one? Either way, I > don't mind submitting what I came up with for the TS-7300 board. > > Thanks! > -- > Florian > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-arm-kernel