Work Style 1. Get topic from the community. 2. Select easy or interested area from the topic. 3. Play with it. 4. Create screenshot. 5. Organize
Monthly Archives: November 2010
GNU Source Installer is a source package manager for Unix-likes.
[youtube https://www.youtube.com/watch?v=zTvKiIoB0QI?rel=0&w=640&h=480]
logger—0.6.xml
[daemon.log]Every daemon without a separate facility logs to daemon.log. The priority of log events is not relevent.[debug]File debug has messages useful for debugging.The priority of log events are not relevent.[dmesg] After the kernel has booted, all kernel messages are written to dmesg for later reference.This file is not rotated and only exists for a single …
proc asound devices 0.2
$cat /proc/asound/devices 2: : timer 3: : sequencer 4: [ 0- 2]: digital audio capture 5: [ 0- 1]: digital audio playback 6: [ 0- 1]: digital audio capture 7: [ 0- 0]: digital audio playback 8: [ 0- 0]: digital audio capture 9: [ 0- 0]: hardware dependent 10: [ 0] : control $ …
proc filesystem with alsa.
$cat /proc/asound/cards 0 [NVidia ]: HDA-Intel – HDA NVidia HDA NVidia at 0xf5000000 irq 22 $ The HD-audio component consists of two parts: the controller chip and the codec chips on the HD-audio Linux provides a single driver for all controllers, snd-hda-intel. Although the driver name contains a word of a well-known hardware vendor, it’s …
advanced linux sound architecture
The ALC883 series 7.1+2 Channel High Definition Audio (HDA) codecs are compliant with Microsoft’s UAA (Universal Audio Architecture). The ALC883 series provide 10 DAC channels that simultaneously support 7.1 sound playback, plus 2 channels of independent stereo sound output (multiple streaming) through the front panel stereo output. Flexible mixing, mute, and fine gain control functions …
acpi with proc
AC Adapter in Proc Filesystem Alternating current (AC) adapters are used to power or charge many common electronic devices, such as mobile phones, laptop computers, or external hard drives. An AC adapter changes AC power from an electrical outlet into the type of power or voltage that an electronic device needs to work. Typically, each …
code optimizer
code optimization optimization is the strategy of examining intermediate code as produced by or during the code generation phase with the aim of producing code that runs very efficiently.Production of code that use very little space has also been a goal of some optimizers; nevertheless, the main emphasis has traditionally been and will be in …
intermediate code generation
Intermediate Code Generation Because of the complexity of code generation, a compiler typically breaks up this phase into several steps,involving various intermediate data structures, often including some form of abstract code called intermediate code. Reference/Source : Compiler Construction: Principles and Practice Kenneth C Louden
semantic analysis
Semantic Analysis Semantic analysis is the phase in which the compiler adds semantic information to the parse tree and builds the symbol table.This phase performs semantic checks such as type checking (checking for type errors), or object binding (associating variable and function references with their definitions), or definite assignment (requiring all local variables to be …