https://devzone.nordicsemi.com/f/nordic-q-a/108441/zephyr-usb-cdc-interrupt-on-dtr-changeHello, I have an application, where once in a while an USB cable might be attached for charging the battery of the device. While that happens, once in a while, someone might attach the USB cable to a PC and start a terminal emulation and start a serviceen-USTelligent Community 13Mon, 19 Feb 2024 14:40:57 GMThttps://devzone.nordicsemi.com/thread/469576?ContentTypeID=1Mon, 19 Feb 2024 14:40:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:ef3e4c0f-d4d5-4373-b31e-2cd3acad3adeTorsten Robitzki<p>Hi Kenneth,</p> <p>thank you for your effort.</p> <p>best regards</p> <p>Torsten</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/469574?ContentTypeID=1Mon, 19 Feb 2024 14:37:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3ef61c39-e064-446e-8c4d-a42fd3156ccbKenneth<p>Hello,</p> <p>I looked into this a while back, I don&#39;t think things have changed since then:<br /><a href="https://devzone.nordicsemi.com/f/nordic-q-a/98117/ncs-2-3-0-usb-cdc-acm-uart-is-there-a-way-to-get-a-callback-on-dtr-changes">NCS 2.3.0 USB CDC ACM / UART: Is there a way to get a callback on DTR changes?</a>&nbsp;</p> <p>Kenneth</p><div style="clear:both;"></div>