BeetleX Posted May 28, 2019 Posted May 28, 2019 Hi, I want to attach an external USB-I2C adapter (i2c-tiny-usb, https://github.com/harbaum/I2C-Tiny-USB). As I understand, the existing kernel drivers should be invoked for this. First I tried with Raspian, all went fine: [ 66.451429] usb 1-1.3: new low-speed USB device number 7 using dwc_otg [ 66.595547] usb 1-1.3: New USB device found, idVendor=0403, idProduct=c631 [ 66.595562] usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 66.595571] usb 1-1.3: Product: i2c-tiny-usb [ 66.595579] usb 1-1.3: Manufacturer: Till Harbaum [ 66.595587] usb 1-1.3: SerialNumber: 0150 [ 66.633027] i2c-tiny-usb 1-1.3:1.0: version 2.01 found at bus 001 address 007 [ 66.636876] i2c i2c-3: connected i2c-tiny-usb device [ 66.637519] usbcore: registered new interface driver i2c-tiny-usb The same with cubietruck, kernel 4.13.16, i2c activated in armbian-config: [9266171.211947] usb 3-1: new low-speed USB device number 4 using ohci-platform [9266171.478997] usb 3-1: New USB device found, idVendor=0403, idProduct=c631 [9266171.479011] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [9266171.479017] usb 3-1: Product: i2c-tiny-usb [9266171.479023] usb 3-1: Manufacturer: Till Harbaum [9266171.479029] usb 3-1: SerialNumber: 0189 The driver seems not to be activated. Anything I could do for diagnosis? Rgds, Holger
Tido Posted May 28, 2019 Posted May 28, 2019 1 minute ago, BeetleX said: Anything I could do for diagnosis? armbianmonitor -u tells the reader all the details about your Installation, like Kernel-Version and much more
Igor Posted May 28, 2019 Posted May 28, 2019 Enable https://github.com/armbian/build/blob/master/config/kernel/linux-sunxi-next.config#L2744 , submit PR and wait for next update. If you need it faster, use build tools and make a custom kernel while enabling this on the way. 4 hours ago, BeetleX said: i2c activated in armbian-config This is related to onboard I2C.
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