default or selected kernelversion does not have config value CONFIG_FWTTY_MAX_CARD_PORTS.
Result is shown for kernelversion 6.9.9
Maximum number of serial ports supported per adapter
configname: CONFIG_FWTTY_MAX_CARD_PORTS
Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Maximum number of serial ports supported per adapter
In linux kernel since version 3.14 (release Date: 2014-03-30)
Set this to the maximum number of serial ports each firewire
adapter supports. The actual number of serial ports registered
is set with the module parameter "ttys".
adapter supports. The actual number of serial ports registered
is set with the module parameter "ttys".