Iam using Raspberry pi 3b along with Xbee and Sixfab 3G/4G base sheild. getting
ftdi_sio ttyUSB0: failed to get modem status: -32
usb usb1-port1: disabled by hub (EMI?), re-enabling...
and also getting this
WARN::dwc_otg_hcd_handle_hc_fsm:2462: Unexpected IRQ state on FSM transaction:dev_addr=4 ep=0 fsm=6, hcint=0x00000002
after running some time all ports are disconnected and reassigned to different ports. please let us know the solution to overcome this problem.
Linux raspberrypi 4.19.66-v7+ #1253 SMP Thu Aug 15 11:49:46 BST 2019 armv7l GNU/Linux