Forums » Software Development »
DSPLink kernel driver
Added by Andrew Holt about 13 years ago
Hi,
I have built dsplinkk.ko using the instructions on the wiki. Modinfo reports:
modinfo dsplinkk.ko
filename: dsplinkk.ko
license: GPL v2
depends:
vermagic: 2.6.34-rc1-00093-g3e8f54f-dirty preempt mod_unload modversions ARMv5
And, on my MityDSPL138 uname -r reports:
2.6.34-rc1-00093-g3e8f54f-dirty
So I copy the file on the the board, and
insmod: error inserting 'dsplinkk.ko': -1 Unknown symbol in module
dsplinkk: Unknown symbol __bswapsi2
Any ideas ?
Replies (3)
RE: DSPLink kernel driver - Added by Michael Williamson about 13 years ago
Hmm...
Are you using the same build of the kernel (e.g., the same .config file) as the one that is running?
Did you use the same toolchain for both builds?
I haven't seen this particular issue. Can you post your .config file that I might try to reproduce?
-Mike
RE: DSPLink kernel driver - Added by Andrew Holt about 13 years ago
Hi,
I have just rebuilt the kernel module, and I have just spotted that the build issues a warning:
Building kernel side code using kbuild
make PROFILE=RELEASE -C /home/mitydsp/MDK_current/sw/ARM/linux/linux-davinci SUBDIRS=/home/mitydsp/MDK_2011-03-31/sw/3rdparty/dsplink_linux_1_65_00_03/dsplink/gpp/src ARCH=arm modules
WARNING: "__bswapsi2" [/home/mitydsp/MDK_2011-03-31/sw/3rdparty/dsplink_linux_1_65_00_03/dsplink/gpp/src/dsplinkk.ko] undefined!
Kernel side build complete
Copying dsplinkk.ko to /home/mitydsp/MDK_current/sw/3rdparty/dsplink_linux_1_65_00_03/dsplink/gpp/export/BIN/Linux/OMAPL138/RELEASE
In answer your your questions:
Yes.
Yes.
And .config is attached.
Thanks,
Andrew
RE: DSPLink kernel driver - Added by Michael Williamson about 13 years ago
Are you passing the CROSS_COMPILE=arm-angstrom-linux-gnueabi- declaration to the make as well?
-Mike
