I have a serial device connected to pi´s USB slot. The device is connected to the USB port though internally the USB interface is connected to a USB-to-UART bridge.For programming purposes this means that the interface appears as (virtual) serial interface (RS232). The driver is CP210x. In the pi, I used modprobe cp210x to load the driver. lsmod lists cp210x
The name of the device is Rotor Gene. In windows system it is detected in port COM5. After I connect to the device, dmesg gives:
usbcore:registered new interface driver usbserial usbcore:registered new interface driver usbserial_generic usbserial:USB Serial support registered for generic usbcore:registered new interface driver cp210x usbserial:USB Serial support registered for cp210x usb 1-1.2: new full speed USB device number 7 using dwc_otg usb 1-1.2:New USB device found, idVendor=c0b8, idProduct=e007 usb 1-1.2:New USB device strings, Mfr=1, Product=2, SerialNumber=3 usb 1-1.2: Product: ROTOR-GENE usb 1-1.2: Manufacturer: Silicon Labs usb usb 1-1.2: SerialNumber: 120876
With the device plugged and not plugged, ls /dev/tty* lists the same ports. There is no ttyUSB nor ttyS in the list.
Why the device is not attached to a port in my pi.