Usually the DPRINTK macro is just a printk usually with KERN_DEBUG or
KERN_ERR, and will be invoked only when DEBUG is defined. This is used
instead of directly calling printk to easily turn ON or OFF the
debugging messages in your driver.
example:
#ifdef DEBUG
#define DPRINTK(format,args...) printk(KERN_DEBUG
format,##args)
#else
#define
DPRINTK(format,args...)
#endif
On Sep 27, 10:10 am, Peter Teoh <htmldevelo...@gmail.com> wrote:
> in drivers/atm/idt77252.h:
>
> is the MACRO:
>
> #define DPRINTK(args...) do { if (debug & DBG_GENERAL)
> printk(args); } while(0)
>
> which means JUST printk() when DEBUG is turned on.
>
> On Sep 25, 7:56 pm, sai <sp.pongp...@gmail.com> wrote:
>
> > I am the student of android devices driver! I always see the
> > word"DPRINTK" in the drivers code.I do not the meaning of it. Also
> > how different between DPRINTK with printk? can someone tell me?Thank
> > you very much!
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