妮仔的學習筆記

2009年9月4日星期五

* Audio: I2S and Linux sound system

System: ------------ -------- | Embedded | ---->I2S | audio | <----MIC | controller | ---->I2C | cod...
Linux script : backslash "\"

backslash "\" : escape next special characters Ex: echo "Path is $PATH" ---> This will show $PATH content ech...
how to git format patch in project

#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #This only for one git project #+++++++++++++++++++++++++++++++++++++++...
wifi basic diagram on Linux

reference http://acx100.erley.org/stable.html Basic Diagram of Component Interaction [Wireless Card] | [Linux Kernel ] | | [ud...
* busybox : /bin/sh : app not found

建立好的Busybox,我build 其他的application(alsa-utils) 出現 -/bin/sh : aplay not found 後來發現需要copy tools chain /lib 和 /libc to embedded root file system...
*audio driver on linux

Reference Essential Linux device drives 1. Audio connection cpu ===> audio codec ===> MIC or speaker ex: audio codec : AC97. TI TPS659...
git tags

#git tag HEAD #git push --tags origin android #repo forall -pv -c git tag HEAD #repo forall -pv -c git push --tags
Linux driver Makefile for CROSS-COMPILE

ifneq ($(KERNELRELEASE),) obj-m := test.o else KDIR := /work/mydroid/kernel/kernel PWD := $(shell pwd) default: $(M...

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