CONFIG_ETRAX_SER1_DTR_RI_DSR_CD_ON_PB is not available for thedefaultarchitecture x86.
Result is shown for architecture cris
default or selected kernelversion does not have config value CONFIG_ETRAX_SER1_DTR_RI_DSR_CD_ON_PB.
Result is shown for kernelversion 6.7-rc3

DTR_RI_DSR_CD_on_PB

configname: CONFIG_ETRAX_SER1_DTR_RI_DSR_CD_ON_PB

Ser1 DTR, RI, DSR and CD assignment
└─>DTR_RI_DSR_CD_on_PB
In linux kernel since version 2.6.12  
Enables the status and control signals DTR, RI, DSR and CD on PB for
ser1.