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SPI unconditionally uses GPIOHANDLE_SET_LINE_VALUES_IOCTL which is only available since kernel 4.8 andd7c51b47acresulting in the following build failure since switch to upstream in commit03fa36df7e: linuxspi.c: In function 'linuxspi_reset_mcu': linuxspi.c:102:28: error: storage size of 'data' isn't known struct gpiohandle_data data; ^~~~ linuxspi.c:110:32: error: 'GPIOHANDLE_SET_LINE_VALUES_IOCTL' undeclared (first use in this function) ret = ioctl(fd_linehandle, GPIOHANDLE_SET_LINE_VALUES_IOCTL, &data); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fixes: - http://autobuild.buildroot.org/results/769021040e5e9293584734e4f461baeaa6dd91cd Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches