how to write a serier ports driver?

hello everyone :
1.how to wrtie a serier ports driver? or how to hang it with io-char?
2. please send source code of 8205 to pla_456@163.com if you have
Thank you very much!

What version of QNX are you using?

Since you are in China, you should be able to ask a copy from Leadingtek: qnx.com.cn/contactus/default.htm

6.1. what’s wrong?

but there( qnx.com.cn/contactus/default.htm) don’t supply the source free

and which function will be call if user configure the com using io-char?

I don’t have QNX 6.1 installation anymore. The 8250 DDK source code is on the QNX 6.1 full CD. If you don’t have it, you can download the CD image from mama.indstate.edu/users/liug/qnx … xrtp61.iso

I am attaching the source from QNX 6.2.1, hope it helps.

thank you, i will try it

can i find the kernel source code in it ?if yes where in it?

Additional source code can be obtained from QSS via some special license, for about $10,000. QNX provides kernel source only to select customers at even a high price. Check the below news article for details:

openqnx.com/Article282.html

Thank you noc! you help me a lot !