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The Devil's in the Details

Issue 25

From Issue #25
May 1996

May 01, 1996  By Georg V. Zezschwitz and Alessandro Rubini
 in
This article, the third of five on writing character device drivers, introduces concepts of reading, writing, and using ioctl-calls.
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Re: Kernel Korner: The Devil's in the Details

Anonymous's picture
Submitted by Anonymous on Sat, 10/19/2002 - 02:00.

Hi

When you call wake_up_interruptible () from the handler the control unpends the sleeping task finish the read system call from the and then return back to continue the handler after calling wake_up ? Or else both the wake_up and unpending sleep task goes in parallel.

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