Re: [PATCH 0/4] firewire: ohci: remove obsolete module-level debug parameter

On Thu, Aug 21, 2025 at 09:30:13AM +0900, Takashi Sakamoto wrote:
> The "firewire-ohci" module has long provided a "debug" parameter that
> enabled debug logging by calling printk() from hardIRQ context.
> 
> Between v6.11 and v6.12, a series of tracepoints events have been added as
> a more suitable alternative. Since v6.12, a commit cd7023729877
> ("firewire: ohci: deprecate debug parameter") has already marked the
> parameter as deprecated.
> 
> This series removes the parameter, as its functionality is now fully
> covered by tracepoints.

Hi Takashi,

Now that the "debug" parameter has been removed, can you provide 
instructions for using tracepoints? For example, what is the new 
procedure instead of adding "debug=7" to the module command line? What 
is the equivalent to 
"echo -1 > /sys/module/firewire_ohci/parameters/debug"?

-- Adam