Questions tagged [block-device]

A block device is a computer data storage device. It organizes data into fixed sized blocks that are typically 512 or 4096 bytes long. Data is indexed by a logical block address. Block storage devices are widely available, including spinning hard drives or solid-state devices. They may be used directly by applications or may have a filesystem or other data structure layered on top of them.

139 questions
0
votes
1 answer

Mounting block device driver module on linux stopped working

I make block device driver module and insert module on Ubuntu. And then I want to mount that module as file system using 'mkfs'command. But, mkfs command didn't work more with following message: writing superblocks and filesystem accounting…
Jimmy
  • 473
  • 5
  • 9
  • 13
-1
votes
1 answer

mkfs.ext4 on nbd gets stuck

I am trying to mkfs ext4 filesystem on /dev/nbd0 (I am on Ubuntu) I do not get any error msg and the command just gets stuck sudo mkfs.ext4 /dev/nbd0 I am using this BUSE code from github: https://github.com/acozzette/BUSE/blob/master/README.md …
Noor Yag
  • 43
  • 7
-1
votes
2 answers

How do you access secret area of any USB device?

We know interfaces based on "vtable" principle. Once you have a pointer to an object, you can narrow-cast it to an interface and the new object is the same object but is very limited to the interface. I always thought hardware firmware is somewhat…
Croll
  • 3,631
  • 6
  • 30
  • 63
-1
votes
1 answer

USB drivers fall under which category of drivers? character drivers or block drivers?

I am trying to implement USB drivers in Linux. Before that, I want to know whether USB drivers are character drivers or block drivers? or is it a separate category?
Mmh
  • 399
  • 1
  • 5
  • 16
1 2 3
9
10