Re: How to access correctly serial port inside module?

[Jan Engelhardt <jengelh@linux01.gwdg.de>]

On May 14 2007 19:40, Lars K.W. Gohlke wrote:
>> 
>> hallo,
>> 
>> after searching the mailing list and searching the web, I still don't
>> know how to access correctly the serial port (in user space known as
>> /dev/ttyS01)

http://kernelnewbies.org/FAQ/WhyWritingFilesFromKernelIsBad

>> This thread ends before the answer was given and the site redirecting
>> too is restructured:
>> http://marc.info/?l=kernelnewbies&m=98314502419089&w=2
>> 
>> would somebody be so kind to give me an example:
>> 
>> with this behaviour:
>> 
>> 1. read from port
>> 2. output via printk()
>> 3. write to port

inb/inw/inl, printk, outb/outw/outl.

>> I've created already my own char-dev and used it in user-space.
>> However I don't know really how to get information from kernel-code to
>> solve this.

http://lwn.net/Kernel/LDD3/

> would be somebody so polite and give me at least a hint?
> Where to search concretely, or small template.

It's been 4 hours and 40 minutes, and you already expect an answer?
I don't remember you having paid anyone...


	Jan
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