<html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> </head> <body text="#3333FF" bgcolor="#FFFFFF"> Hi, I have a testing machine with modem Sierra Wireless EM7455. Which drivers should be used: A) qmi_wwan B) cdc_mbim Are these drivers compatible? Can they be loaded together on a system XOR they are excluding each other? In the documentation from the manufacturer, it is clear that: The device supports the following protocols for modem communication: <ul> <li>Qualcomm QMI interface. (Please contact your Sierra Wireless account representative for QMI interface documentation.)</li> <li>MBIM (Mobile Broadband Interface Model)</li> </ul> Thank you for your advice. Pavlin </body> </html>