Samsung Interview Question for Software Engineer / Developers






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1
of 1 vote

ioctl exposes mechanism to implement device specific system calls. Such as if you want to implement speed change of motor, you can implement it in ioctl call with specific flag as switch. Same flag is used by application for making ioctl system call to request for motor speed change.

- AbhishekExploring July 14, 2012 | Flag Reply
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0
of 0 vote

IOCTL is system call where from user space u can call like:
ioctl(fd, <CMD>, <Addr of buffer>)
But u need to define IOCTL call for that particular FD in kernel.

- mlakshmanarao July 20, 2011 | Flag Reply
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0
of 0 vote

best example is selection of wifi connection on your laptop , it internally uses ioctl

- Anonymous February 12, 2014 | Flag Reply


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