6364 2014-05-22 01:49:57 +0000 Inexistent CONFIG_FB_DEFERRED_IO in Ångström 3.8.13-yocto-standard 2014-09-02 21:34:54 +0000 1 1 7 Build System, Metadata & Runtime BSPs bsps-meta-minnow unspecified MinnowBoard x86 RESOLVED OBSOLETE Low normal Future 1 chamac2 chamac2 poky.bs.watcher poky.watcher richard.purdie scott.a.garman --- --- Don't know oldest_to_newest 43481 0 chamac2 2014-05-22 01:49:57 +0000 When building a Frame buffer driver for a display, against Ångström (Linux minnow 3.8.13-yocto-standard) kernel header sources, I am getting this error: * error: 'struct fb_info' has no member named 'fbdefio'* After researching the problem, it seems caused for the lack of a setting in the kernel .config file: CONFIG_FB_DEFERRED_IO=y However the error still tanken place after adding the setting to .config file, and adding the following section to video/Kconfig: config FB_DEFERRED_IO tristate depends on FB default n 43533 1 dvhart 2014-05-22 23:45:07 +0000 So we can add that to the minnow-config, but from what I can tell this is more of a linux-libc-headers issue as the header file it provides is impacted by the .config. 43534 2 dvhart 2014-05-22 23:47:01 +0000 Next step would be to look into the libc-linux-headers recipe and see what needs to be done there, test rebuilding that package and the linux-yocto kernel recipe for minnow. Patches are likely needed to oe-core for the headers, as well as to linux-yocto (likely the standard ktype) to apply it generally to all kernels. 44109 3 sjolley.yp.pm 2014-06-19 17:21:28 +0000 Assigning to Requestor for more Info 45121 4 richard.purdie 2014-08-14 14:45:04 +0000 We need more input to further progress this bug. Please reopen if answers to Darren's questions are available.