76 lines
1.8 KiB
Markdown
76 lines
1.8 KiB
Markdown
|
- 问题
|
|||
|
|
- 与驱动的关系，驱动如何在sysfs下创建接口
|
|||
|
|
- sysfs内容列表
|
|||
|
|
- **block** 块设备，都是软连接，指向的实际地址都是device路径的地址 这里面没有块设备上的分区的信息
|
|||
|
|
- loop 虚拟块设备
|
|||
|
|
- sda/sdb 硬盘
|
|||
|
|
- emmc0/emmc1 emmc
|
|||
|
|
- **class** 很多，后续研究
|
|||
|
|
- **devices** 都是/dev路径下的东西？
|
|||
|
|
- armv8_cortex_a55
|
|||
|
|
- platform
|
|||
|
|
- <span style="color:#7030a0">serial8250</span>
|
|||
|
|
- system
|
|||
|
|
- **cpu**
|
|||
|
|
- cpu0
|
|||
|
|
- regs
|
|||
|
|
- midr/revidr
|
|||
|
|
- cache
|
|||
|
|
- index0-3
|
|||
|
|
- cpu1
|
|||
|
|
- **cpufreq**
|
|||
|
|
- **policy0** // rk就用了cpufreq模块
|
|||
|
|
- **cpuidle**
|
|||
|
|
- clocksource // 时钟源查看
|
|||
|
|
- clocksource0
|
|||
|
|
- available_clocksource 有效时钟源 timekeeper
|
|||
|
|
- current_clocksource
|
|||
|
|
- power
|
|||
|
|
- uevent ？
|
|||
|
|
- clockevents
|
|||
|
|
- container
|
|||
|
|
- breakpoint // 有啥用？
|
|||
|
|
- software // 有啥用？
|
|||
|
|
- virtual
|
|||
|
|
- bdi Backing Device interface 块设备后端实现
|
|||
|
|
- block 虚拟块设备
|
|||
|
|
- devlink
|
|||
|
|
- mem
|
|||
|
|
- misc
|
|||
|
|
- net
|
|||
|
|
- sound
|
|||
|
|
- thermal
|
|||
|
|
- tty
|
|||
|
|
- wakeup
|
|||
|
|
- workqueue
|
|||
|
|
- **bus**
|
|||
|
|
- 模板
|
|||
|
|
- devices
|
|||
|
|
- drivers
|
|||
|
|
- drivers_autoprobe
|
|||
|
|
- drivers_probe
|
|||
|
|
- uevent
|
|||
|
|
- cpu
|
|||
|
|
- devices
|
|||
|
|
- 里面是软链接，指向的是 ../../devices/sys
|
|||
|
|
- drivers
|
|||
|
|
- serial // ?文件夹怎么创建的？
|
|||
|
|
- spi
|
|||
|
|
- devices
|
|||
|
|
- **fs**
|
|||
|
|
- ext4
|
|||
|
|
- feature
|
|||
|
|
- 文件系统 已经存在的文件系统中，这里会有内容
|
|||
|
|
- **module**
|
|||
|
|
- <span style="color:#7030a0">8250</span>
|
|||
|
|
- block
|
|||
|
|
- cpufreq
|
|||
|
|
- cpuidle
|
|||
|
|
- **dev**
|
|||
|
|
- block
|
|||
|
|
- 各种主设备号:从设备号的文件
|
|||
|
|
- char
|
|||
|
|
- 各种主设备号:从设备号的文件 指向device的软连接？
|
|||
|
|
- **firmware**
|
|||
|
|
- **kernel**
|
|||
|
|
- **power**
|