Jan 28 15:53:07 vali kernel: cdc_acm 4-1.4.3.1:1.0: This device cannot do calls on its own. Jan 28 15:53:07 vali mtp-probe: bus: 4, device: 10 was not an MTP device Jan 28 15:53:07 vali kernel: usb 4-1.4.3.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 Jan 28 15:53:07 vali kernel: usb 4-1.4.3.1: new full-speed USB device number 10 using ehci-pci I got this in the /var/log/messages when I plugged the device. I did some tests in the Debian machine with the udev and the Linux is recognizing the USB device. The Ubuntu distro is 14.04 and the Kernel 3.13.0-43-generic #72- Ubuntu SMP. Then I exported my VM and used it on a Ubuntu machine, disabled the ModemManager and everything worked pretty well. If not check Selecting communication port or Installing the null modem driver. Check connection (check the serial cable or USB cable is correctly plugged) and check that terminal is waiting for a connection. There is this error RAS 777 that the documentation explain as: I activate the USB device on the VirtualBox, the Windows XP detects it, the LLT recognize that there is a COM port active, but the PPP link is not established. The second problem is that the PPP connection is never established. If the ModemManager daemon is running, it restarts the device few seconds after it's connected to the machine's USB port. Some time ago, when I was using a different version of the kernel (I'm not sure which one right now) everything was working fine.
It was downloaded from the Oracle Repository. This Debian is a VirtualBox host for a Windows XP SP3 (32 bits) guest machine that runs the LLT to connect to the terminals. My environment is a Debian Jessie running Kernel 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt2-1 () x86_64 GNU/Linux.
The tool establishes a PPP link and after that there is a FTP connection. Actually, it is a USB interface that works as a serial port. The vendor provide a Windows Local Loading Tool (LLT) that connects through their "serial" interface. They run Telium platform and I use an Windows application to load the files into the devices. I'm developing applications for Ingenico POS devices EFT 930S and ICT 220. I'm sending this message here, because the problem is happening only on my Debian machine.
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