How to disable USB devices based on their vendor ID on GNU/Linux?
In that question someone wanted a blacklist for all USB devices, and then only allow specific devices.
devices
RHEL: Creating stable names for network interfaces
We have a RHEL 5.5 box with 8 interfaces. And the eth interface naming is flip flopping. Sometimes eth0 comes up on physical port 7th, and sometimes on another physical port.
How do mouse events work in linux?
This is mostly out of curiosity, I’m trying to understand how event handling works
on a low level, so please don’t reference me to a software that’ll do it for me.
Why do we need to mount on Linux?
I understand what mounting is in Linux, and I understand device files. However I do not understand WHY we need to mount.
How can I tell whether a network interface is physical (device) or virtual (alias)?
I have a small home router running OpenWrt (Kind of embedded Linux for routers). It has five Ethernet ports, one labeled WAN and four labeld LAN 1 to 4. It has the following Network Interfaces defined as per ifconfig:
Mounting a device — role of /dev, /media and /mnt, and the mount command
What is the difference between /dev,
/media and /mnt? Following is what I
have found from internet but I still
have little idea:
How does /dev/fd relate to /proc/self/fd/?
$ ls -l /dev/stdin /dev/fd/0 lrwx—— 1 tim tim 64 2011-08-07 09:53 /dev/fd/0 -> /dev/pts/2 lrwxrwxrwx 1 root root 15 2011-08-06 08:14 /dev/stdin -> /proc/self/fd/0 $ ls -l /dev/pts/2 /proc/self/fd/0 crw–w—- 1 tim tty 136, 2 2011-08-07 09:54 /dev/pts/2 lrwx—— 1 tim tim 64 2011-08-07 09:54 /proc/self/fd/0 -> /dev/pts/2 What differences and relations are between … Read more
Can I stop Linux from listening to a USB input device as a keyboard, but still capture events with a program?
I have a USB barcode scanner at /dev/input/event0 (/dev/input/by-id/usb-Metrologic_Metrologic_Scanner-event-kbd), and scanning a barcode causes it to send keypress events. I’m capturing these keypresses using the libdevinput Ruby library, which works great. The issue is that each barcode is also entered as a username, and subsequently a password on the Raspberry Pi, causing lots of failed login attempts. (The Raspberry Pi will be headless, and inside a microwave.)
Can I setup a loopback audio device?
If I can send audio to the output devices, then I can record the same audio as a wave. With filesystems, you can just setup a loopback filesystem and write binary data on a file instead of a device.
Special File that causes I/O error
I want to automatically test if a piece of software reacts as expected if an essential SQLite DB file fails to be read (causing an I/O error). Exactly that happened some days ago at a client. We manually fixed it but now I want to create automatic code to fix it and need access to a broken file to test that.