-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Jan Engelhardt schrieb: > On May 24 2007 12:22, Lars K.W. Gohlke wrote: >> ok, I have read everything and also have read the chapters about >> tty_drivers. However I'm not really understand, how to ... . >> >> I will summarize the concrete scenario, which will lead to the >> understanding and further solution of deadling with serial driver. >> >> [scenario] >> >> 1. in userspace I'm doing: > date > /dev/ttyS0 >> 2. in kernelspace I want to print out this date. >> >> [/scenario] >> >> I'm really new to kernel coding, that's why I maybe understand some >> functions not the proper way. >> >> I'm a bit confused. > > So am I. Usually, you connect two different machines with a serial cable. > (Leaving out the special case of connecting ttyS0-ttyS1 on the same machine.) > > This poses the first question: whose kernelspace? the sender or > the receiver side? And by "this date" do you perhaps mean > "whatever was sent", or specifically a date? And print to _where_? > > Up to now, it looks like you want to do "cat > > Jan date is an example and you got it, I want to do "cat