[Ilugc] Query on drivers?

From: raja.mallik@xxxxxxxxxxx (Raja Mallik)
Date: Tue Aug 23 10:20:24 2005

Hi All,

When a read system call is issued on some opened file etc... why is that
the driver has to copy data from the HDD to kernel and then from kernel
to userspace mem. Why can't it be copied from HDD to user space?
Assuming that the user space mem can be made not to swap out.

Any Clue on this?

regards
Raja

Follow-Ups:
- [Ilugc] Query on drivers?
  - From: Shuveb Hussain
- [Ilugc] Query on drivers?
  - From: Sujith M
- [Ilugc] Query on drivers?
  - From: Shakthi Kannan

References:
- [Ilugc] One Day One Command (DIALOG)
  - From: Bharathi Subramanian

[Ilugc] Query on drivers?

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