On Tue, 20 Nov 2018 00:19:54 +0100, stakanov wrote: > > In data martedì 20 novembre 2018 00:08:45 CET, Mauro Carvalho Chehab ha > scritto: > > uname -a > > > > > Linux silversurfer 4.20.0-rc3-1.g7e16618-default #1 SMP PREEMPT Mon Nov 19 > > > 18:54:15 UTC 2018 (7e16618) x86_64 x86_64 x86_64 GNU/Linux > > uname -a > > Linux silversurfer 4.20.0-rc3-1.g7e16618-default #1 SMP PREEMPT Mon Nov 19 > > 18:54:15 UTC 2018 (7e16618) x86_64 x86_64 x86_64 GNU/Linux > > from https://download.opensuse.org/repositories/home:/tiwai:/bsc1116374/ > standard/x86_64/ The kernel must be correct (7e16618 contains the patch, I confirmed). > So I booted this one, should be the right one. > sudo dmesg | grep -i b2c2 should give these additional messages? Avoid grep but look around the whole lines. The added debug print is no dev_info() or such but just a plain printk(), hence it won't give any prefix. thanks, Takashi