[U-Boot-Users] issue for usb host bulk receiving RING from usb modem

Hi Guys, I am porting usb host tty device driver on uboot. I just use usb usb_bulk_msg to communicate with modem. I met the following problems. Could you please help me resolve the following issue? Thanks in advance. When I use usb usb_bulk_msg to connect one USB modem, send one AT comm

[U-Boot-Users] usb host tty driver issue

Hi Guys, I am porting usb host tty device driver on uboot. I just use usb usb_bulk_msg to communicate with modem. I met the following problems. Could you please help me for the following issue? Thanks in advance. When I use usb usb_bulk_msg to connect one USB modem, send one AT command (e.