panic: bus_add_child is not implemented

[Warner Losh]

can you send me the source?

Warner

> On Mar 2, 2015, at 6:11 PM, Matías Perret Cantoni <perretcantonim at gmail.com> wrote:
> 
> Hello!
> 
> I wrote a simple newbus driver for reading and writing a specific I/O port,
> which is basically a copy of the Warner Losh example driver for the iOpener
> Led. I compiled with no errors, but I get a kernel panic " bus_add_child is
> not implemented" when I try to load it in my development board which is a
> Zedboard with FreeBSD.
> 
> 
> The way I compiled it:
> 
> # cd /usr/src
> root at matiBSD:/usr/src # make buildenv TARGET_ARCH=armv6
> BUILDENV_SHELL=/usr/local/bin/bash
> KERNBUILDDIR=/usr/obj/arm.armv6/usr/src/sys/ZEDBOARD
> Entering world for armv6:arm
> [root at matiBSD /usr/src]# cd /home/drivers/p3
> [root at matiBSD /home/drivers/p3]# make
> 
> 
> The content of the Makefile I used:
> 
> KMOD =p3
> SRCS =p3.c device_if.c bus_if.h
> .include <bsd.knod.mk>
> 
> 
> The way I tried to load it:
> 
> root at zedboard:/usr # kldload /boot/msdos/p3.ko
> panic: bus_add_child is not implemented
> cpuid = 1
> 
> 
> My only guess here is that I should compile the driver with the kernel so
> that the linker can properly link the BUS_ADD_CHILD() method call in the
> drivers identify() method.
> 
> My host is:    FreeBSD matiBSD  10.1-BETA2 FreeBSD 10.1-BETA2
> My target is: FreeBSD zedboard 10.1-BETA2 FreeBSD 10.1-BETA2
> 
> 
> I'm new at this, so any income is appreciated!
> 
> Regards,
> Matias.
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