On Sun, Mar 21, 2010 at 1:01 AM, Matt Thomas <m...@3am-software.com> wrote: > I'm talking about <maj, min> to device. How, as a user, do I know what > actual tty does /dev/ttyXX open?
If we make tty(4) a device, we can lookup its parent by drvctl(8) (extend it to return dv_parent). My question is - is this the only reason why each serial driver has its own device entry? Masao