I have this all standardized for BBB, and here are pointers how to build an out of tree kernel module on BBB target system (with some specifics): local.conf (with added systemd service): https://github.com/ZoranStojsavljevic/bbb-yocto/blob/master/bbb-releases/bbb-warrior/local.conf_full
Compiling out of tree kernel modules: https://github.com/ZoranStojsavljevic/bbb-yocto/blob/master/Issues/LKM/prepare_modules.log Zoran _______ On Wed, Oct 9, 2019 at 12:48 PM Shravan Singh <shra...@bluesparq.com> wrote: > > Hello Bruce, > > So I was finally able to compile the kernel module by creating a patch and > then applying that patch to linux recipe file. > However now, I am facing a different issue and have been trying to figure > that one out, Hence the delay in my response. > > After creating an appropriate device tree overlay file. After loading the > module, the I2C driver still reads the screen abs_x_max=800 and abs_y_max=480. > I have specified the frame_buffer_width and frame_buffer height as 1024 X > 600. Also I have specifically provided touchscreen-x-size and > touchscreen-y-size in my device tree overlay to match the same. > > Why could this be happening? > > Regards, > Shravan Singh > (239) 243-0838 > > Blue Sparq, Inc. > 928 NE 24th Lane unit 4 and 5. > Cape Coral, FL 33993 > > IMPORTANT: The contents of this email and any attachments are confidential. > They are intended for the named recipient(s) only. If you have received this > email by mistake, please notify the sender immediately and do not disclose > the contents to anyone or make copies thereof. > > > On Fri, Oct 4, 2019 at 1:42 PM Bruce Ashfield <bruce.ashfi...@gmail.com> > wrote: >> >> On Fri, Oct 4, 2019 at 11:40 AM Shravan Singh <shra...@bluesparq.com> wrote: >> > >> > Hello, >> > >> > I am trying to build an out of tree service module on a yocto raspberry pi >> > image(target system). >> > I am using yocto version warrior >> > and my machine is Raspberrypi-cm3 >> > Kernel version is 4.19.58 >> > >> > I was able to get the build directory by including >> > >> > IMAGE_INSTALL_append = " kernel-modules kernel-dev kernel-devsrc" >> > After that, I saw a build directory on raspberrypi-image >> > >> > Now I am trying to compile my source file with the command >> > >> > make ARCH=arm CROSS_COMPILE=arm-poky-linux-gnueabi- >> > KSRC="/lib/modules/4.19.58/source" -C /lib/modules/$(shell uname -r)/build >> > M=/home/root/tsDriver modules >> > >> > After that I get an error saying asm/bitsperlong.h: no such file or >> > directory >> > >> > Am I missing something in my make command? >> >> You need to rebuild/regenerate some file on target (they can't be packaged). >> So have you gone to /usr/src/kernel and done a "make scripts prepare" ? >> >> Bruce >> >> > >> > >> > Regards, >> > Shravan Singh >> > (239) 243-0838 >> > >> > Blue Sparq, Inc. >> > 928 NE 24th Lane unit 4 and 5. >> > Cape Coral, FL 33993 >> > >> > IMPORTANT: The contents of this email and any attachments are >> > confidential. They are intended for the named recipient(s) only. If you >> > have received this email by mistake, please notify the sender immediately >> > and do not disclose the contents to anyone or make copies thereof. >> > -- >> > _______________________________________________ >> > yocto mailing list >> > yocto@yoctoproject.org >> > https://lists.yoctoproject.org/listinfo/yocto >> >> >> >> -- >> - Thou shalt not follow the NULL pointer, for chaos and madness await >> thee at its end >> - "Use the force Harry" - Gandalf, Star Trek II > > -- > _______________________________________________ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
