On Wed, Jun 05, 2019 at 09:49:21AM +0100, Lee Jones wrote: > On Wed, 05 Jun 2019, Johan Hovold wrote: > > > On Wed, Jun 05, 2019 at 09:20:47AM +0100, Lee Jones wrote: > > > On Wed, 05 Jun 2019, Johan Hovold wrote: > > > > There are plenty of options for debugging already ranging from adding a > > > > temporary dev_info() to the probe function in question to using dynamic > > > > debugging to have driver core log every successful probe. > > > > > > This is what I ended up doing. It was time consuming to parse though > > > a log of that size when you have no paging or keyboard. > > > > With the right command-line option to enable dynamic debugging you get > > one line per successful probe, just like you wanted. Or are you now > > saying that one-line per device is too much after all? ;) > > Which command line option are you pertaining to? To enable dynamic debugging in driver core you could use something like CONFIG_CMDLINE="dyndbg=\"func really_probe =p\"" That gives you two printouts per successful probe, for example: bus: 'usb-serial': really_probe: probing driver edgeport_ti_1 with device ttyUSB0 bus: 'usb-serial': really_probe: bound device ttyUSB0 to driver edgeport_ti_1 Or you can of course just change the corresponding pr_debug to pr_info while debugging. Johan
