Sysfs is a Linux filesystem, normally mounted on /sys, which provides information about hardware and kernel components.

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How do I find out what filesystem drivers are compiled-in into the linux kernel?

On a running linux system, what is a portable (among linux distributions) way to find out what filesystems the current kernel has compiled-in (not through modules) support for? Consider for example ...
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CONFIG_GPIO_SYSFS makes /sys/class/leds disappear

I have an embedded Linux board I'm working on, with a button and a couple LEDs. By default, I can control the LEDs via /sys/class/leds/redled/brightness However, I have no way to monitor the ...
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USB modalias. Meaning of numeric values

For the USB modaliases, I know that the values corresponding to the device's vendor and product ids can be found here: http://www.linux-usb.org/usb.ids Which online resources and/or kernel source ...
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How to retrieve sysfs devpath of a USB flash drive given its corresponding partition sysfs path?

I have a USB flash drive connected to a hub. Its storage device partition devpath in sysfs is /devices/pci0000:00/0000:00:12.2/usb6/6-1/6-1.2/6-1.2:1.0/host10/target10:0:0/10:0:0:0/block/sdb/sdb1. I ...
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Settings value in /sys/devices/platform/i8042/serio1/serio2/speed as no effect

I'm following this tutorial to ajust the TrackPoint speed for my Lenovo T420. However, setting a value in /sys/devices/platform/i8042/serio1/serio2/speed has no effect. The trackpoint is unaffected ...
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Best Practices for Configuring/Reading Sensor Devices

I have a gadget with a number of environmental sensors attached via an I2C bus, and would like to be able configure and read these sensors via an unprivileged application. Unfortunately, there ...
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Best way to implement a system configuration driver for Linux

Is there a standard architecture for a driver that allows to read an set system configuration for an embedded Linux system? System configuration means for example hardware calibration values, revision ...