I am a long time serial port user and while I may not fully understand all the mechanics I have the serial port address's impaled in my brain.
Well I have my first box that has UART2 on PCI bus with a strange address. There is no UART0 or UART1. So I am assuming that beginning with Haswell that Intel ditched the 16550 support? Maybe this is just an odd box or chipset. I don't have much hardware newer than Haswell.
What are everyone's experience? I need to check
- com1=ttys0 0x3f8 irq4
- com2=ttys1 0x2f8 irq3
- com3=ttys2 0x3e8 irq4
- com4=ttys3 0x2e8 irq3
Well I have my first box that has UART2 on PCI bus with a strange address. There is no UART0 or UART1. So I am assuming that beginning with Haswell that Intel ditched the 16550 support? Maybe this is just an odd box or chipset. I don't have much hardware newer than Haswell.
What are everyone's experience? I need to check
dmesg|grep uart
on my Skylake Xeon to see if it uses 16550.