I plugged a USB dongle-style serial converter in to a Debian
Squeeze system and did generate a ttyUSBx port. The device it is
connected to is not responding at all though it does work fine
on Windows systems and I suspect it is a driver issue due to the
behavior both under c-kermit and communications software meant
to use a serial port and talk to the device on the other end
which happens to be a two-way radio.
It looks like that maybe the correct driver for the USB
device can not be found so it is trying some sort of default
mode as a last resort. Here are the syslog messages. What
exactly does noserial do?
I think there is a DC voltage sent from the radio when
it is present as the comm software immediately complains when
the device is not present and then waits to time out when it is
present but that is the only thing different between the
connected radio and a brick. Log follows:
Dec 6 20:58:58 wb5agz kernel: [1671016.001397] usb 4-2.3: new full speed USB
device using ohci_hcd and address 5
Dec 6 20:58:58 wb5agz kernel: [1671016.112378] usb 4-2.3: New USB device
found, idVendor=067b, idProduct=2303
Dec 6 20:58:58 wb5agz kernel: [1671016.112393] usb 4-2.3: New USB device
strings: Mfr=1, Product=2, SerialNumber=0
Dec 6 20:58:58 wb5agz kernel: [1671016.112405] usb 4-2.3: Product: USB-Serial
Controller
Dec 6 20:58:58 wb5agz kernel: [1671016.112414] usb 4-2.3: Manufacturer:
Prolific Technology Inc.
Dec 6 20:58:58 wb5agz kernel: [1671016.113082] usb 4-2.3: configuration #1
chosen from 1 choice
Dec 6 20:58:58 wb5agz kernel: [1671016.115558] pl2303 4-2.3:1.0: pl2303
converter detected
Dec 6 20:58:58 wb5agz kernel: [1671016.148702] usb 4-2.3: pl2303 converter now
attached to ttyUSB8
Dec 6 20:58:58 wb5agz NetworkManager: <debug> [1354849138.962875]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_67b_2303_noserial').
Dec 6 20:58:58 wb5agz NetworkManager: <debug> [1354849138.984126]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_67b_2303_noserial_if0').
Dec 6 20:58:59 wb5agz NetworkManager: <debug> [1354849139.039770]
nm_hal_device_added(): New device added (hal udi is
'/org/freedesktop/Hal/devices/usb_device_67b_2303_noserial_if0_serial_usb_0').
Thanks for any suggestions or pearls of wisdome.
Martin McCormick WB5AGZ
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