Pavel Pirkl wrote: > Hello, > 1. > I am using USB to serial convertes with FTDI chip. But I don´t know > which paramaters of irq and ioaddr I must to set for xeno_16550A.ko . > Can you help me where I found this parameters? > > 2. > Now I am using two serial link defined us > #!/bin/sh > setserial /dev/ttyS1 uart none #COM2 > setserial /dev/ttyS2 uart none #COM3 > insmod ./xeno_nucleus.ko > insmod ./xeno_native.ko > insmod ./xeno_rtdm.ko > insmod ./xeno_16550A.ko ioaddr=0x2f8,0x3e8 irq=3,5 tx_fifo=10,10 > start_index=0 #COM2, COM3 > > This two serial link works very good. > But if I am set for example this > #!/bin/sh > setserial /dev/ttyS2 uart none #COM3 > setserial /dev/ttyS3 uart none #COM4 - not function ?? > insmod ./xeno_nucleus.ko > insmod ./xeno_native.ko > insmod ./xeno_rtdm.ko > insmod ./xeno_16550A.ko ioaddr=0x3e8,0x3f8 irq=5,10 tx_fifo=10,10 > start_index=0 #COM3, COM4 > > The COM3 works but COM4 doesn´t work. Where is problem?
The FTDI can only be used via an USB stack + a FTDI device drivers, there is no such thing as 16550A emulation via USB devices. I have such a FTDI driver for the USB4RT stack here, but it is in an "experimental" (means unusable :-/) state. I still hope we can resolve this one day, but I cannot promise when. Jan
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