On 12 August 2005 16:01, James wrote: > Frank Schafer <frank.schafer <at> t-systems.cz> writes: > > Gooooooooooogle "Advanced Bash-Scripting Guide" >>> > > <www.tldp.org/LDP/abs/html/> > > Well this is an excellent resource, BUT it seems > devoid of any examples where a custom device driver, > say for the serial port on a linux system, > inserted as a module or is part of the kernel, > and the associate software that allows users > to access some of the hardware(features) and not > other hardware/firmware/kernel features(code), unless > they are root, or have a special (encrypted)key > or another form of chicanery (biometric generated > key).
True but then, what you are asking for has precious little to do with bash scripting. I was actually wondering what you need when reading your original code. If you want to hack kernel drivers you need to familiarise yourself with the kernel and the generic driver interface. Don't know whether the documentation in the kernel is enough for that. On the other hand, I don't think you really need a kernel driver. If your goal is to drive some gadget attached to a serial port, you can do all that in a userspace application. I once wrote the complete interface between a database and an array of automatic medical analysers attached to a serial line in userspace. Alright, that was on HPUX but it did compile and work under linux as well. Although a bit outdated, Richard Stevens's "Advanced Programming in the UNIX Environment" is still a very valuable resource to get started. Uwe -- 95% of all programmers rate themselves among the top 5% of all software developers. - Linus Torvalds http://www.uwix.iway.na (last updated: 20.06.2004) -- [email protected] mailing list
