embedded-linux

I am looking for a tool which can graphically represent the hardware device tree used in linux kernel. I am trying to understand linux kernel for particular arm chipset. It would be a really useful tool to have. TheCodeArtist You can try the Component inspector tool. It is part of QorIQ Configuration Suite which is a plugin for Eclipse. Download here . (Requires registration. Free to download.) Personally as i am on the cmd-line most of the time, and quite addicted to vi , i find its built-in code folding capabilities are somewhat sufficient as long as the dts is properly indented. Setup hot

I have done make menuconfig for a board defconfig and modified few configurations. When I select save, a new .config was created in the Kernel top directory. I want to create new defconfig for this .config file created. Can I copy the .config as a new defconfig and copy to arch/arm/configs/ ? $ cp .config arch/arm/configs/board_new_defconfig 0andriy I think you have to do just one command and use the created file as you want to. % make savedefconfig % cp defconfig arch/arm/configs/my_cool_defconfig To get all possible targets just run % make help As noted by Adam Miller followed by Jeremy ,

When i do the following. "cat /proc/mounts". tmpfs /export/ftp/import tmpfs rw,relatime,size=102400k 0 0 tmpfs /export/ftp/export tmpfs rw,relatime,size=10240k,mode=755 0 0 The documentation of embedded device said that import and export are located in DRAM However in other equipment ubi18_0 /nvdata1/temporary-download ubifs rw,sync 0 0 ubi18_0 /export/ftp/import ubifs rw,sync 0 0 ubi18_0 /export/http/import ubifs rw,sync 0 0 tmpfs /export/ftp/export tmpfs rw,size=10240k,mode=755 0 0 The documentation of embedded device said that import is located in NAND and export are located in DRAM. I

i'm doing a project in which i need to handle an interrupt in Linux. the board i'm using is an ARM9Board based on the s3c6410 MCU by Samsung (arm 11 processor) and it has the following I/O interface : as the image shows i have EINTx pins for external interrupts and GPxx pins as GPIO pins and i don't mind using any of them but i don't have their numbers ! For EINTx pins : when i call int request_irq(unsigned int irq, void (*handler)(int, struct pt_regs *), unsigned long flags, const char *device); i need the interrupt number to pass it as the first paramter of the function , so how can i get

I want to learn the basics of embedded linux. To do this I am assuming that I need to go and buy some sort of hardware board and have the linux kernel code. I have no idea where to start with this and any tips/pointers would be most welcome. Ideally I would like people to point out a full system (e.g. this "board kit with linux" with these "manuals" are very good). Also cost is a factor as I am doing this personally not as a business : ) Thanks very much, Code You will need: 1 - Boards: I started with a beagleboard . A new beaglebone black is available now. There's a large support community

I have an application that runs on an embedded Linux device and every now and then changes are made to the software and occasionally also to the root file system or even the installed kernel. In the current update system the contents of the old application directory are simply deleted and the new files are copied over it. When changes to the root file system have been made the new files are delivered as part of the update and simply copied over the old ones. Now, there are several problems with the current approach and I am looking for ways to improve the situation: The root file system of the