<html><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Hi Peter,<div><br></div><div>Thanks for the info.</div><div><br></div><div>Actually, the lsusb output was incomplete. It looks like the one attached so the device is actually there. Yet, you are right, the /dev/ttyUSB device is not present. </div><div><br></div><div>I checked the state of the usb device and it appears to be loaded with the qmi_wwan driver, which seems correct:</div><div><br></div><div><div># lsusb -t</div><div>/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc_otg/1p, 480M</div><div> |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/5p, 480M</div><div> |__ Port 1: Dev 3, If 0, Class=Vendor Specific Class, Driver=smsc95xx, 480M</div><div> |__ Port 2: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M</div><div> |__ Port 3: Dev 5, If 0, Class=Vendor Specific Class, Driver=rtl88XXau, 480M</div><div> |__ Port 4: Dev 6, If 0, Class=Mass Storage, Driver=usb-storage, 480M</div><div> |__ Port 5: Dev 7, If 0, Class=Vendor Specific Class, Driver=, 480M</div><div> |__ Port 5: Dev 7, If 1, Class=Vendor Specific Class, Driver=, 480M</div><div> |__ Port 5: Dev 7, If 2, Class=Vendor Specific Class, Driver=, 480M</div><div> |__ Port 5: Dev 7, If 3, Class=Vendor Specific Class, Driver=, 480M</div><div> |__ Port 5: Dev 7, If 4, Class=Vendor Specific Class, Driver=qmi_wwan, 480M</div></div><div><br></div><div>Do you happen to have any other suggestion?</div><div><br><div>With regards,<br>Patrick Kosiol</div></div></body></html>