On Thu, Apr 21, 2022 at 11:22:00AM -0400, Ian Cowan wrote: > > For using the dev_dbg() macro, do you define this in the header file > (i.e. for this it would be videocodec.h), or where should this be > included from? dev_dbg() is defined in include/linux/dev_printk.h. Look around at how it's used. pr_debug() might be an option, but I don't know if we will accept that, we prefer dev_dbg(). regards, dan carpenter