From: Ash C. <ash...@gm...> - 2013-08-09 17:26:43
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Hi Paul, I'm guessing you are compiling your kernel using Yocto. This guide offers some useful hints on modifying the kernel build for Yocto: http://www.yoctoproject.org/docs/current/kernel-dev/kernel-dev.html Typically though, if I'm playing around in the kernel, I just cross-compile the kernel directly (a la http://gumstix.org/basic-cross-compilation.html ) as I find it faster for just playing around. @Akram: I like the suggestion of an enum too. I'm on vacation for the next week but I'll take a look at it when I get back. --Ash On Fri, Aug 9, 2013 at 1:43 AM, Paul D. DeRocco <pde...@ix...> wrote: >> From: Ash Charles [mailto:ash...@gm...] >> >> The trickle charging is enabled by CONFIG_RTC_DRV_TWL4030. In the >> Linux source code, the driver can be found in >> <linux>/drivers/rtc/rtc-twl.c >> (https://github.com/gumstix/linux/blob/omap-3.2/drivers/rtc/rtc-twl.c) >> >> In the probe function, you can see some code along the lines of >> /* enable backup battery charging */ >> /* use a conservative 25uA @ 3.1V */ >> ret = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, >> BIT_PM_RECEIVER_BB_CFG_BBCHEN | >> BIT_PM_RECEIVER_BB_CFG_BBSEL_3V1 | >> BIT_PM_RECEIVER_BB_CFG_BBISEL_25UA, >> REG_BB_CFG); > > I don't see that module anywhere in my build tree. If it was there, I could > figure out how to patch it, but in my build that functionality is either > never being enabled at all, or it's being enabled by some other module. Any > ideas? > > -- > > Ciao, Paul D. DeRocco > Paul mailto:pde...@ix... > > > ------------------------------------------------------------------------------ > Get 100% visibility into Java/.NET code with AppDynamics Lite! > It's a free troubleshooting tool designed for production. > Get down to code-level detail for bottlenecks, with <2% overhead. > Download for free and get started troubleshooting in minutes. > http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk > _______________________________________________ > gumstix-users mailing list > gum...@li... > https://lists.sourceforge.net/lists/listinfo/gumstix-users |