Date: Sat, 1 Feb 2020 20:25:38 +0530 From: Niteesh <gsnb.gn@gmail.com> To: freebsd-current@freebsd.org Subject: OFWBUS: How does autoconfiguration work? Message-ID: <CAD=CwDGyr49%2BL26ODY5V1g6=6CrB9cw64dDFpdq6xhxJS7hdiA@mail.gmail.com>
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I am interested in adding autoconfiguration to one of my projects. The current drivers use lazy initialization, for example, the UART drivers initialize the hardware only during their first invocation. I would like to add a subsystem, that will read the DTB and call the appropriate drivers. I want to know how it is implemented in FreeBSD, I took a look at the code, but I am still couldn't figure out, when does FreeBSD start to parse the DTB, how does it fill up the device struct and few more. Can someone please explain how all this works with reference to code or point me to some documentation? Thanks, Niteesh
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