Problems compiling bluetooth module
pgf at laptop.org
Fri Aug 28 11:25:22 EDT 2009
> Hi everyone!
hi emiliano --
> I have a USB Bluetooth adapter and I need to make it work on an XO.
> Don't want to recompile the whole kernel but to compile only the kernel
it's probably easier to compile the whole thing, and then just use
the resulting module.
> I've never done this, so maybe I'm missing something...
> The module I'm trying to compile is "btusb" (I hope this is the one I need).
> I'm using kernel 2.6.25-20090223.1.olpc.69098d87d56945c, so I got
> the corresponding src.rpm from http://dev.laptop.org/~dilinger/testing/ .
> I've also installed kernel-devel, kernel-headers, gcc, glibc, glibc-devel,
> glibc-headers and make in my XO (maybe I forgot others).
> I moved to /usr/src/redhat/SOURCES/linux-2.6.25/drivers/bluetooth
> and edited Makefile so it looks like this:
don't do that. at the top level directory, run "make menuconfig".
navigate to Network->Bluetooth and Network->Bluetooth->Bluetooth Drivers.
enable what you need. when in doubt, turn it on -- you don't
have to put the module on your XO, but if you need it, you'd
rather not build again.
after saving your new config, type "make".
> obj-m := btusb.o
> KDIR := /lib/modules/$(shell uname -r)/build
> PWD := $(shell pwd)
> $(MAKE) -C $(KDIR) M=$(PWD) modules
> Then I ran make but I get 5 warnings about functions which aren't
> defined: hci_recv_fragment, hci_register_dev, hci_alloc_dev,
> hci_free_dev and hci_unregister_dev. Those functions are defined
> in /usr/src/kernels/2.6.25......../include/net/bluetooth/hci_core.h
> I've successfully compiled the module in my desktop PC, but it
> won't compile in my XO. Actually, it does compile, but when I
it's likely that module relationships between the kernel versions
you're building for your desktop, and for your XO.
> run "insmod btusb.ko" it gives an error about the above symbols
> being undefined.
> Any tips? Am I missing something like defining a path?
> part 2 text/plain 129
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paul fox, pgf at laptop.org
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