Hi, Russell King: > Like I said, I can't see the twigs for the forest due to the shear > noise caused by the up -> uap change. > That's quite easy to filter out. $ sed -e s/uap/up/g < uart.patch | patch -p1 -g1 $ bk -r diffs -ub | less $ bk -r unedit # ;-) Anyway, as for the lock, remember that there are two serial ports on one interrupt, so you can't use a tty-specific lock for them. -- Matthias Urlichs