upd README with instructions for /dev/ipmc-payload

README.md

@@ -31,12 +31,14 @@ Set up the USB interfaces for the IPMC tester's uManagement interface and the IP
 ```
 sudo udevadm info /dev/ttyUSB0
 sudo udevadm info /dev/ttyUSB1
+sudo udevadm info /dev/ttyUSB2
 ```
 Note: take from the output of these commands the proper "AB0..." strings and use them in the 99-serial.rules file below
 ```
 sudo cat > /etc/udev/rules.d/99-serial.rules << EOF
-SUBSYSTEM=="tty", ENV{ID_SERIAL_SHORT}=="AB0KOOS1", ATTRS{bInterfaceNumber}=="00", GROUP="zp", SYMLINK+="ipmc-umgt"
-SUBSYSTEM=="tty", ENV{ID_SERIAL_SHORT}=="AB0KOORZ", ATTRS{bInterfaceNumber}=="00", GROUP="zp", SYMLINK+="ipmc-debug"
+SUBSYSTEM=="tty", ENV{ID_SERIAL_SHORT}=="AB0KOOS9", ATTRS{bInterfaceNumber}=="00", GROUP="zp", SYMLINK+="ipmc-umgt"
+SUBSYSTEM=="tty", ENV{ID_SERIAL_SHORT}=="AB0KOOS7", ATTRS{bInterfaceNumber}=="00", GROUP="zp", SYMLINK+="ipmc-debug"
+SUBSYSTEM=="tty", ENV{ID_SERIAL_SHORT}=="AB0KOOSA", ATTRS{bInterfaceNumber}=="00", GROUP="zp", SYMLINK+="ipmc-payload"
 EOF
 
 sudo udevadm control --reload-rules && sudo udevadm trigger