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Altera_Forum's avatar
Altera_Forum
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16 years ago

Ioctl problem

Hi, I'm writing a device driver and I have problems with the ioctl function. When I run my user application associated with the driver in the terminal, "printks" that are inside my module funct...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi,

--- Quote Start --- 

//Printk function fwrite
Copy_from_user: 4
I'm here
//Printk function Ioctl
Super_ioctl
Valor_cmd:1
Ioctl_Valor1: 5

--- Quote End ---

Where did you put 'printk' inside of 'fwrite'? The 'fwrite' is only a library function, not a kernel function.

Kazu