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Feature #5356

open

207: IRQ registration and deregistration

Added by Pavel Andrianov about 10 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Start date:
10/20/2014
Due date:
% Done:

0%

Estimated time:
Published in build:

Description

Interrupts are registered by the function int request_irq, which takes a number of interruption, and are deregistered by the function free_irq. The rules of correct usage are:
  • request a particular number of interruption only once;
  • deregister all registered interrupt handlers on module uploading;
  • deregister only registered handlers and only for this particular module.

Sample bugfix
94f5659cf

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