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10
votes
4answers
4k views

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. ...
5
votes
2answers
322 views

Unclaim a device

So I am using Ubuntu and trying to use some hardware which I had some problems with before. The problem before was that the company who made my hardware sold their internal parts to another company ...
24
votes
4answers
15k views

What is the mknod command used for?

I just started using Ubuntu as my main OS and I wanted to learn about things I should not do, and learn by the bad things people have done in the past. I came across these email about horror stories ...
5
votes
1answer
927 views

How to be notified when a USB device was plugged?

My system have to auto-mount for usb devices, how can I be notified when a usb device is plugged? Where can I read more about? I would like to treat that using shell script or C.
15
votes
2answers
3k views

Manipulating `/dev/video`

I'd like to take the video stream from /dev/video0, apply some effects or changes and make the result available on /dev/video1. /dev/video0 ---> Apply Effects ---> /dev/video1 For example, mplayer ...
5
votes
2answers
2k views

Can I share a device from under /dev across hosts?

Here's the situation. I have a video device /dev/video0 on a VMware Server and I want to access this device from within a virtual machine. However for whatever reason I can't connect the device ...
10
votes
4answers
3k views

Shell command to read device registers?

On a single-board computer running Linux, is there a way to read the contents of the device configuration registers that control hardware? I think it would be a wrapper for inw(), more or less. I'm ...
56
votes
18answers
160k views

How do I find out what hard disks are in the system?

I need to know what hard disks are available, including ones that aren't mounted and possibly aren't formatted. I can't find them in dmesg or /var/log/messages (too much to scroll through). I'm hoping ...
4
votes
1answer
3k views

Why do my SATA devices show up under /proc/scsi/scsi?

I have 3 SATA devices on my system. They show up under /proc/scsi/scsi, although these are not SCSI devices. Why do my SATA devices show up under the SCSI directory? $ cat /proc/scsi/scsi Attached ...