Messages in this thread | | | Date | Tue, 25 Jul 2017 13:52:35 +0200 | From | Johan Hovold <> | Subject | Re: [PATCH 1/3] mfd: Add support for FTDI FT232H devices |
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On Wed, Jul 19, 2017 at 02:59:00PM +0200, Anatolij Gustschin wrote: > On Wed, 19 Jul 2017 10:59:34 +0200 > Johan Hovold johan@kernel.org wrote:
> >> And as David Laight already pointed out, your ftdi-fifo-fpp-mgr driver > >> seems too application specific for a generic chip like this. > > > >Of which this is one is one of the major. > > Thanks all for feedback. I'm still pondering how to interface the > fpga manager driver to FTDI FIFO driver. > > >In short, your driver is much to application specific and is probably > >something that needs to be implemented in userspace using libftdi. > > I have a requirement to use the fpga manager framework, therefore the > kernel driver is needed. Our usage scenario is a multi stage fpga > configuration process, the first stage is a pre-configuration via > FTDI SPI/FIFO, all subsequent stages are also done by other fpga > manager drivers. libftdi based driver already existed for hardware > bring-up, now I need similar functionality as kernel fpga manager.
How are you even accessing these fpga-managers from userspace? I thought current interface was for in-kernel use only?
Thanks, Johan
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