I have an Orange Pi Zero running Lubuntu and I want it to communicate with an Arduino (clone).I have just put the USB cable from the arduino into my Orange Pi.If compare al the 'ports'(?) (/dev folder) when I am plugged in and when I am not i found that /dev/usbdev6.4 is my arduino.My arduino is just running a code where it says every second Hey over serial.So i tried to run:minicom -D /dev/usbdev6.4 But noting comes up.I have tried a lot of things and I am now out of options.Can somebody help my?EDIT:The requested information:My kernel version:Linux orangepi 3.4.39 #46 SMP PREEMPT Wed Nov 9 09:50:08 CST 2016 armv7l armv7l armv7l GNU/Linuxthe dmesg | grep -i tty command gave me this:$[    0.000000] Kernel command line: console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p2 init=/sbin/init rootwait rootfstype=ext4 panic=10 consoleblank=0 enforcing=0 loglevel=7[    0.000000] console [tty1] enabled[    0.393385] uart0: ttyS0 at MMIO 0x1c28000 (irq = 32) is a SUNXI[    0.505110] console [ttyS0] enabled[    1.007724] uart1: ttyS1 at MMIO 0x1c28400 (irq = 33) is a SUNXI[    1.111633] uart2: ttyS2 at MMIO 0x1c28800 (irq = 34) is a SUNXI[    2.490156] Bluetooth: RFCOMM TTY layer initializeddmesg difference:> [  188.338462] ehci_irq: highspeed device connect> [  188.540136] ehci_irq: highspeed device disconnect> [  188.540200] ohci_irq: fullspeed or lowspeed device connect> [  188.960117] usb 6-1: new full-speed USB device number 2 using sunxi-ohcilsusb difference:> Bus 006 Device 002: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapterI have also read this:https://lists.launchpad.net/kernel-packages/msg183415.htmlIt is about a CH341 chip bug. And I think my clone arduino is using this.Could this be the problem?I did modinfo ch341 and this returned:libkmod: ERROR ../libkmod/libkmod.c:507 kmod_lookup_alias_from_builtin_file: could not open builtin file '/lib/modules/3.4.39/modules.builtin.bin'modinfo: ERROR: Module ch341 not found.Thanks in advance!
Can't use /dev/usbdevX.X as a serial port?
arduino
And there's your answer: You don't have the kernel module needed for your USB serial device. Upgrade to a newer kernel that contains this module, or compile the module for your kernel. Make sure you use a version of the module source code that already includes the device id you need (1a86:7523). After successful installation, you should get something like$ sudo modinfo ch341filename:       /lib/modules/4.8.5/kernel/drivers/usb/serial/ch341.kolicense:        GPLalias:          usb:v1A86p5523d*dc*dsc*dp*ic*isc*ip*in*alias:          usb:v1A86p7523d*dc*dsc*dp*ic*isc*ip*in*alias:          usb:v4348p5523d*dc*dsc*dp*ic*isc*ip*in*depends:        usbserial,usbcoreintree:         Yvermagic:       4.8.5 SMP preempt mod_unload modversions 686 (that's for my system, of course). The alias v1A86p7523d is the one that was patched in and should be present.