Tiny Core Linux

dCore Import Debian Packages to Mountable SCE extensions => dCore X86 => Topic started by: mzlj10 on September 29, 2016, 10:28:16 AM

Title: More then 4 serial port
Post by: mzlj10 on September 29, 2016, 10:28:16 AM

I'm trying to connect 4 more serial port through PC104 extension. My board already has 4 serial ports. I know I need to rebuild kernel and change the values of CONFIG_SERIAL_8250_NR_UARTS=8 and CONFIG_SERIAL_8250_RUNTIME_UARTS=8 . But how do I  now check if there are 8 available ?
I tried this commands in terminal and get only 4 tty as result. Is there an option to use with bootcodes to activate more serial ports?

Code: [Select]

dmesg | grep tty
Thanks in advance!

Title: Re: More then 4 serial port
Post by: Rich on September 29, 2016, 11:13:41 AM

Hi mzlj10
Maybe this is of some use:
http://forum.tinycorelinux.net/index.php/topic,19746.msg122400.html#msg122400

Title: Re: More then 4 serial port
Post by: mzlj10 on September 30, 2016, 02:53:30 AM

Thank you for your tip.
I already followed this steps but I get only 4 serial port. Is there some additional configs to set in the OS to see this 4 more port?

Title: Re: More then 4 serial port
Post by: curaga on September 30, 2016, 04:14:07 AM

They are in general enough, but your specific board may require something more. I'm afraid a quick google didn't tell what.