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Old 03-11-2009, 12:09 AM   #1
ananth86coolguy
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Registered: Mar 2009
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Unhappy Compiling Driver Application program along with Kernel


hi

i've written a character driver on uClinux platform for blinking the LEDs on a blackfin 527 board.i included the driver code in the uclinux-dist/linux/driver/char directory and compiled the entire kernel.
i got the kernel image and i loaded the image onto board.i got the listing of my driver in /proc/devices .now i have written an application which uses
my LED driver for blinking the LEDs.My doubt is how should i compile the application program with kernel.In which directory should i place my application program so that it gets compiled along with kernel??
 
Old 03-11-2009, 02:14 AM   #2
Suresh Maniyath
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Registered: Feb 2009
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Filesystem

Ananth,
Applications are not part of kernel. One should place his/her application inside the file system directories. For example I can say your home directory "/home/ananth/" (if it exist) will be the right choice.

Best regards,
Suresh Maniyath

Last edited by Suresh Maniyath; 03-11-2009 at 02:16 AM.
 
Old 03-11-2009, 02:34 AM   #3
ananth86coolguy
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thanks suresh for your kind info. . .
 
Old 03-11-2009, 02:41 AM   #4
ananth86coolguy
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Question

hey can yo explain me bit clearly. .we have compiled the LED driver along with kernel.thats getting compiled fine. .i have an application which uses my LED driver via ioctl() to make the LEDs blink. . em asking how should i compile this application.
 
Old 03-11-2009, 02:59 AM   #5
Suresh Maniyath
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Registered: Feb 2009
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Cross-Compile

Ananth,
You need to cross-compile your application with your toolchain(cross-compiler). I am not sure about the name of your gcc. But just for an example
xxx-linux-gcc -o Application.out Application.c

The above command will generate a cross compiled binary application. Copy the same into your file system.
If you are using custom defined IOCTL'S then, place the ioctl definitions into a header file and you can include that header file to your driver and to the apps.

Best regards,
Suresh

Last edited by Suresh Maniyath; 03-11-2009 at 03:49 AM.
 
  


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