Greetings, I am having a problem with usbserial and ftdi_sio kernel loadable modules.
I am working on an embedded board using RHEL 6.0. The board has 2 FTDI chips each with quad serial interface for a total of 8 serial ports. In addition, we have a WiFi module that behaves as a USB to Serial converter. I can see in /dev directory that the 8 serial ports from FTDI are mapped as ttyUSB0 to ttyUSB7, however I can't find the WiFi module. If I disable the loading of ftdi_sio.ko module, the WiFi module appears as ttyUSB0 and it works fine. It seems to me that both the WiFi module and the one of the FTDI interfaces want to use ttyUSB0 and it seems that the FTDI interface is winning. Even if I rename the FTDI interfaces from ttyUSB0..7 to fdtisio0..7 , I still don't see the WiFi module. The WiFi module is loaded in rc.local using modprobe usbserial vendor=0x**** product=0x**** as per the WiFi module vendor's recommendations. Also, when I do lsmod I notice that ftdi_sio is used by 0 and usbserial is used by ftdi_sio. Any idea about what might be wrong? Your help would be greatly appreciated. Regards, Mostafa Kassem -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
