Hi all, I am quite new to nut mail list and not good in English. My OS is Armbian 23.02.2 Jammy with linux 5.15.93-sunxi Hardware is Raspberry pi Nut version 2.7.4-14ubuntu Install via apt-get install UPS manufacturer : Kstar Model : micropower Cannot find the manufacturer on the HCL Kstar is a oem manufacturer. That OEM to many brand. Lsusb show : Bus 006 Device 004: ID 09d6:0001 KSTAR UPS The problem is I connect Kstar UPS to my raspberry pi board via USB and start nut service. The service cannot start. It show text ?Driver failed to start (exit status = 1) Network UPS Tools - Megatec/Q1 protocol USB driver 0.12 (2.7.4) No supported devices found. Please check your device availability with 'lsusb' and make sure you have an up-to-date version of NUT. If this does not help, try running the driver with at least 'subdriver', 'vendorid' and 'productid' options specified. Please refer to the man page for details about these options (man 8 blazer_usb). ? I try nutdrv_qx, blazer_usb, usbhid-usb. All nut service cannot start. I try to put in subdirver, vendorid, productid but still cannot. It seem like this UPS have a new hardware to communicate via USB. Please advise what should I do. Regards, Phruk -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://alioth-lists.debian.net/pipermail/nut-upsuser/attachments/20230401/387b7934/attachment.htm>