yaffs

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Examples
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  • YAFFS (Yet Another Flash File System) was designed and written by Charles Manning, of Whitecliffs, New Zealand, for the company Aleph One. YAFFS maintains a tree structure in RAM memory of the physical location of these chunks. — “YAFFS - Wikipedia, the free encyclopedia”,
  • Unlike some other file systems which may be stored on the Flash device and then copied to RAM during boot (i.e. ramdisk) YAFFS/YAFFS2 actually resides on the Flash device and allows the user to read/write data to Flash. This is particularly. — “Create a YAFFS Target Image - Texas Instruments Embedded”,
  • The purpose of this document is to describe the interfacing of the YAFFS Direct Interface, as well YAFFS is the first file system that has been. designed, from the. — “YAFFS Direct Interface (YDI) Integration Guide”, users.actrix.co.nz
  • YAFFS (Yet Another Flash File System) is now in its second generation and provides a fast robust file system for NAND and NOR Flash. YAFFS Licences are non-exclusive, perpetual, world-wide, royalty-free and paid for with a single fee for one product. — “YAFFS | A Flash file system for embedded use”,
  • 不错的一篇文章,拿出来与大家分享。1 The Linux MTD, YAFFS HowtoUser ProgramSystem Call InterfaceBlock Device InterfaceFIle System(jffs,yaffs)Virtual File ,Linux中国论坛. — “(转)The Linux MTD, YAFFS Howto - 嵌入式系统 ARM应用 - Linux中国论坛”, linux-
  • Introducing YAFFS the first NANDspecific flash file system News Linux for Devices: In this technical article at , the originator of YAFFS introduces the open source YAFFS flash file system, which he describes as. — “Introducing YAFFS, the first NAND-specific flash file system”,
  • New yaffs patch-ker.sh mechanism. Charles Manning. 0. Illegal use of YAFFS. Laurie van Use the keyword ml:yaffs to restrict your search to this mailing list. — “YAFFS”, aleph1
  • The home of Alexander Yaffé online. — “Alexander D. Yaffé”,
  • The actual size of NAND will vary depending on the SOM that you have, please check the size and available blocks before erasing. To add a NAND YAFFS partition to you SOM, use the following LogicLoader commands: The actual size of NAND will. — “How do I add a YAFFS partition in LogicLoader on my NAND”,
  • Encyclopedia article of YAFFS at compiled from comprehensive and current sources. — “Yaffs encyclopedia topics | ”,
  • yaffs definition, meaning of word yaffs, anagram of yaffs. If you distribute a product using YAFFS you must release all your linked source code · Cached pageYAFFS - Wikipedia, the free. — “What is a word yaffs meaning. Definition of yaffs”,
  • YAFFS fundamentals. Filesystem Details. Embedded Use. History. Decided to create 'YAFFS' - Dec 2001. Working on NAND emulator - March Program/erase failure. Detected in hardware. YAFFS copies data and retires block. Charge Leakage - bitrot over time. — “YAFFS A NAND flash filesystem”,
  • What does YAFFS stand for? Definition of YAFFS in the list of acronyms and abbreviations provided by the Free Online Dictionary and Thesaurus. — “YAFFS - What does YAFFS stand for? Acronyms and abbreviations”,
  • YAFFS is GPL'ed, so it will never be included in the eCos tree. (which are not yet included in the eCos tree), we provide a copy of a CVS checkout of YAFFS for ease of unpacking and testing. — “Rutger Hofman: eCos Software”,
  • YAFFS. Dictionary terms for YAFFS, definition for YAFFS, Thesaurus and Translations of YAFFS to English, Spanish, Korean. — “YAFFS in - dictionary and translation”,
  • One Key to update Boot-loader, Kernel, Yaffs, NK.bin and one Key to configure parameters of Linux. Supporting Cramfs/ramfs/etx2/fat32/nfs/yaffs. • System parameters can be saved in REGEDIT, and residual Flash can be read and. — “Samsung ARM9 S3C2440A Single Board Computer supports CDMA”,
  • These older chips also generally allow 2 or 3 write cycles per page, which YAFFS takes advantage of - i.e. dirty pages are marked by writing to a specific spare area byte. Newer NAND flash chips have larger pages, 2048 bytes 64 bytes spare areas, and stricter write requirements. — “Yaffs”,
  • If you wish to use the mtd nandsim device as a simulator for testing yaffs, you can follow these steps: 1) Make sure you have a recent 2.6 kernel with a recent MTD tree. ( If you ask the MTD folk, they'll tell you to run the mtd patchin script from the latest cvs version of MTD. — “MTD nandsim HOWTO for yaffs users - msg#00146 - linux.file”,
  • did anybody spend some time in compiling yaffs for 2.6.25-rcX? call got lost. So current yaffs does not compile in recent kernels. anymore. Matthias. — “[Yaffs] yaffs with kernel 2.6.25: no more iget()”, lists.aleph1
  • YAFFS is an optional middleware package for the eCos RTOS that provides a high reliability file system designed and optimized for use with raw NAND flash devices. YAFFS is one of the most mature, reliable and widely used NAND file systems available today. — “YAFFS - NAND flash file system for the eCos RTOS”,
  • Myspace profile for Yaffs with pictures, videos, personal blog, interests, information about me and more. — “MySpace - Yaffs - 25 - Female - Hartford, Connecticut”,

Videos
related videos for yaffs

  • Android platform on Real Target(Zaurus C1000 PXA270) This is Android platform on Real Target(Zaurus C1000 PXa270 416Mhz) Below is my note for memory about task. 1. Kernel for RealTargetboard (필수) ARM EABI (필수) Frame Buffer (Device Driver) (필수) OpenBinder (필수) TouchScreen Device drivers (옵션) Low Memory Killer (옵션) Android Log Subsystem (옵션) Android USB Gadget (옵션) Android Buffer Console ( for goldfish's audio ) (옵션) Android Power Management (옵션) Goldfish (Virtual Machine for QEMU based Emulator ) (옵션) Panic Timeout 2. RootFS . sysfs , proc, tmpfs . yaffs for system & userdata . Dalvik . System Libraries ( webkit , sgl, sqlite, etc) . zygote Process ( /system/bin/app_process) . D-BUS Daemon (System for sending messages between applications. It is used both for the systemwide message bus service) . runtime (/system/bin/runtime , Process for socket binding ) . adbd ( /system/bin/adbd , Android Debugging Bridge Service Daemon) . usbd ( To implement mass storage) . debuggerd ( /system/bin/debuggerd , Debugging Daemon like ddms) . Etc : hcid , sdpd , dund , hfag(sdptool), hsag(sdptool), rfcomm , brick (wipe)
  • YAFFS with 'lzo' compression Demonstration with 'lzo' compression library.
  • K DUB vs yaffs this is why mk42 bridged us.mpg haha
  • YAFFS with 'zlib' compression Demonstration with the option 'zlib compression'
  • HTC HD2 Nand Boot with Yaffs checkpointing workng Shaves off 10 seconds or so off the boot time because it doesn't have to rescan the flash on mount.
  • YAFFS without compression Demonstration without compression
  • HTC HD2 Android from Nand, no SD card, no RootFS Using magldr 1.08 with hotfix and android build. No SD card needed during boot, SD-aware froyo applications install without errors. Proper small initrd like on real Android devices, speeds up boot time and frees up 17.5MB of NAND space. Hopefully this first build i've made will be used as a base for many more to come. Build made using mksquashfs from squashfs 4.0 and mkyaffs2image from latest yaffs git + modification at EDIT: updated link to frg81 based cyanogen build with kernel with wifi fix included
  • His Yaff Yaffs In case you didnt know, Yaff is baby talk for laugh...:o)
  • HTC HD2 Booting from yaffs2 NAND partitions Shubcraft 1.5 (Sense based builds didn't fit on my 256MB /system part) running from NAND on a HTC HD2. This is the first time someone has done this on a HD2. Quadrant benchmark IO score is comparable to the Nexus One. The fbconsole part was much quicker on first boot, because yaffs was checkpointed and was able to mount instantly. Because current Android builds don't unmount their partitions properly on shutdown, yaffs had to rescan the whole partition on next mount (boot). I assume someone will fix this on a proper NAND build. EDIT: updated yaffs sources to latest git, so boot mount resumes from checkpoint every time now, see
  • HTC HD2 Booting android without WinMo NAND test Testing nand partition erase and random writes on yaffs filesystem. DO NOT DO THIS ON YOUR OWN DEVICE. Erasing /dev/mtd/mtd0 WILL BRICK YOUR PHONE because your partition layout is not the same as mine.
  • Google I/O 2010 - Writing zippy Android apps Google I/O 2010 - Writing zippy Android apps Android 201 Brad Fitzpatrick Come hear tips & war stories on making fast, responsive (aka "non-janky") Android apps. No more ANRs! Eliminate event loop stalls! Fast start-ups! Optimized database queries with minimal I/O! Also, learn about the tools and techniques we use to find performance problems across the system and hear what's coming in the future. For all I/O 2010 sessions, please go to
  • Yaffs walkabout 08/02/2010 Walkabout Wales
  • Look Where I'm Blocked From I'm blocked from Teh Chimera. Oh noes. yotsu21 lets other trolls in, but not me. Why? Because I'm the thing he hates most, a troll who uses logic. In addition, he's still butthurt over past events. It seems he really is a hypocrite. Hope you enjoy this video.
  • android demo phone We have booted android in our smartphone(omap730/omap850 based). The linux kernel is linux 2.6.23. Keyboard and touchscreen work fine. The phone boot from uboot. Android can boot from flash(yaffs),sd card and NFS.
  • nerdtalker: @Det_Conan_Kudo Well, thankfully Samsung mostly stopped with YAFFS, haven’t seen it in a while. OEMs that do earn my ire.
  • Det_Conan_Kudo: @nerdtalker Yeah. YAFFS really stinks. And there are still phones that use it, which is extremely irritating.
  • nerdtalker: @Det_Conan_Kudo data loss, less worry when users pull battery, YAFFS sucks, have I hit all the points yet? This is just really old news.
  • AndroidSE: How convert raw binary image (.img) to (.img) in YAFFS format? http://t.co/zb5L16Wz #android

Blogs & Forum
blogs and forums about yaffs

  • “Then you need to use the nand write.yaffs1 command to copy it to the data partition. Note, at this stage I get weird behaviour, I’m not convinced that the yaffs support truly works yet! Afterwards I get some messed up data in other parts of the”
    — Android on ARMv4 (take2) : Open Kernel Labs, ok-

  • “After I finished cursing, I decided to go back to using yaffs and working out what the real problem is. firstly build both the mkyaffs2image and the mkyaffsimage tool, and then set off building a YAFFS file system”
    — Benno's blog, benno.id.au

  • “JFFS2 and YAFFS for bare NAND Flash and SmartMediaCards but there's no other working solution than JFFS2 and YAFFS at the moment of this writing”
    — MINZKN의 블로그 :: [퍼온글] NAND vs. NOR,

  • “Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. Forum Post: Re: IPNC368 linux start error " yaffs: dev is 1048576”
    — TI E2E Community, e2

  • “Disk file systems include FAT (FAT12, FAT16, FAT32), NTFS, HFS, ISO 9660, and UDF. Boot Partition, allocation, BPB, Bios, Disk Volume are: JFFS, JFFS2, FAT(adapted for embedded applications), cramfs, ramfs and YAFFS. This post will explore the legacy but still well deployed FAT file”
    — Embedded Electronic Systems Blog " Part I Object File Systems,

  • “couldn able to load Yaffs to mini2440 n nor boot. Forum: Linux. Reply | Search | Register I could load kernel.. kernel s pointing to yaffs .. but couldn load”
    — couldn able to load Yaffs to mini2440 n nor boot - FriendlyARM,

  • “YAFFS – Linux Flash File System. Continuing the conversation started in Flash File Systems and JFFS2 blog posts, this post talks Interesting facts about YAFFS. 1. Reliability against data corruption”
    YAFFS – Linux Flash File System,

  • “2009.07.201. yaffs_fs.c: if mtd->size<32MB, increase dev->nReservedBlocks to 10 as yaffs filesystem, you have to umount it. before reboot. Otherwise you will get lots error messages like " **>> yaffs: BlockBits”
    — Nand Driver Nowaday Status Log @ 淡淡的天空 :: 痞客邦 PIXNET ::,

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