* Q: Interfacing to driver
@ 2002-02-24 23:29 David Stroupe
2002-02-25 9:04 ` Jan Hudec
2002-02-25 15:26 ` Zwane Mwaikambo
0 siblings, 2 replies; 3+ messages in thread
From: David Stroupe @ 2002-02-24 23:29 UTC (permalink / raw)
To: linux-kernel
I have created a driver for a custom board. This driver exports the
functions that I need to access from my user programs to control the
card. How do I declare and call this driver function within my user
code so that it will call the device driver function?
TIA
--
Best regards,
David Stroupe
Keyed-Up Software
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Q: Interfacing to driver
2002-02-24 23:29 Q: Interfacing to driver David Stroupe
@ 2002-02-25 9:04 ` Jan Hudec
2002-02-25 15:26 ` Zwane Mwaikambo
1 sibling, 0 replies; 3+ messages in thread
From: Jan Hudec @ 2002-02-25 9:04 UTC (permalink / raw)
To: linux-kernel; +Cc: David Stroupe
> I have created a driver for a custom board. This driver exports the
> functions that I need to access from my user programs to control the
> card. How do I declare and call this driver function within my user
> code so that it will call the device driver function?
> TIA
Exporting makes symbol available to other kernel modules.
You need to register char device or proc entry and define ioctl for it to
call functions you need. You may define read and write if you can define
kind of a comunication protocol.
--------------------------------------------------------------------------------
- Jan Hudec `Bulb' <bulb@ucw.cz>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Q: Interfacing to driver
2002-02-24 23:29 Q: Interfacing to driver David Stroupe
2002-02-25 9:04 ` Jan Hudec
@ 2002-02-25 15:26 ` Zwane Mwaikambo
1 sibling, 0 replies; 3+ messages in thread
From: Zwane Mwaikambo @ 2002-02-25 15:26 UTC (permalink / raw)
To: David Stroupe; +Cc: Linux Kernel, KernelNewbies
On Sun, 24 Feb 2002, David Stroupe wrote:
> I have created a driver for a custom board. This driver exports the
> functions that I need to access from my user programs to control the
> card. How do I declare and call this driver function within my user
> code so that it will call the device driver function?
Usually done with an ioctl (Check out many of the character drivers for
example), you oughta send these kinda questions to the kernelnewbies list
though (CCd)
Zwane
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-02-24 23:29 Q: Interfacing to driver David Stroupe
2002-02-25 9:04 ` Jan Hudec
2002-02-25 15:26 ` Zwane Mwaikambo
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