On Thu, Jul 12, 2012 at 05:25:58AM +1000, Richard McLean wrote:
> What I need is advice regarding a suitable USB-Serial port adapter, as my
> Linux laptop does not have a serial port.
>
> There are further constraints in the system - it would be very desirable to
> have a USB-Serial port adapter with "medical grade galvanic isolation on its
> serial lines".
>
> As far as I can see, only Digi has this.
>
> I am particularly interested in the following models of Digi USB-Serial port
> adapter :
>
> 1. Edgeport/4s MEI Isolated - 4 RS-232/422/485 serial DB-9 software
> selectable with galvanic isolation (Part # 301-1000-95)
> http://www.digi.com/products/model?mid=2690
>
> 2. Edgeport/2c - 2 RS-232 serial DB-9, captive 2-meter cable (Part #
> 301-1003-10)
> http://www.digi.com/products/model?mid=249
>
> (the former has the proper electrical isolation for "production use" while
> the latter does not, though it is more compact and will be used for
> development where the monitoring equipment is not connected to a patient)
>
> Can anyone tell me whether these two USB-Serial port adapters are supported
> by Ubuntu Linux 12.04 ?
> (The Digi datasheet for these products says "Driver support provided by Linux
> USB maintainers" in reference to Linux Support)
> (The Ubuntu website says that the 12.04 LTS Release ships with the Ubuntu
> 3.2.0-23.36 kernel which is based on the v3.2.14 upstream stable Linux kernel)
>
> Are there specific drivers required or is there an applicable generic driver,
> and would I have to find this and install it, or is it built into the kernel ?
I don't think there is a generic driver for usb<->serial converters. I
don't think the USB standard defines these devices.
>
> Could I expect relative smooth sailing from a driver/hardware compatibility
> perspective ?
Once you have a driver they are simple to use. I've never had problems
with FTDI or Prolific. Haven't used any others.
Here is the list from the kernel:
--- USB Serial Converter support
USB Serial Console device support
Functions for loading firmware on EZUSB chips
USB Generic Serial Driver
USB AIRcable Bluetooth Dongle Driver
USB ARK Micro 3116 USB Serial Driver
USB Belkin and Peracom Single Port Serial Driver
USB Winchiphead CH341 Single Port Serial Driver
USB ConnectTech WhiteHEAT Serial Driver
USB Digi International AccelePort USB Serial Driver
USB CP210x family of UART Bridge Controllers
USB Cypress M8 USB Serial Driver
USB Empeg empeg-car Mark I/II Driver
USB FTDI Single Port Serial Driver
USB Fundamental Software Dongle Driver
USB Handspring Visor / Palm m50x / Sony Clie Driver
USB PocketPC PDA Driver
USB IR Dongle Serial Driver
USB Inside Out Edgeport Serial Driver
USB Inside Out Edgeport Serial Driver (TI devices)
USB Garmin GPS driver
USB IPWireless (3G UMTS TDD) Driver
USB Infinity USB Unlimited Phoenix Driver
USB Keyspan PDA Single Port Serial Driver
USB Keyspan USA-xxx Serial Driver
USB KL5KUSB105 (Palmconnect) Driver
USB KOBIL chipcard reader
USB MCT Single Port Serial Driver
USB Moschip 7720 Serial Driver
USB Moschip 7840/7820 USB Serial Driver
USB Motorola Phone modem driver
USB Navman GPS device
USB Prolific 2303 Single Port Serial Driver
USB Ours Technology Inc. OTi-6858 USB To RS232 Bridge Controller
USB Qualcomm Auxiliary Serial Port Driver
USB Qualcomm Serial modem
USB SPCP8x5 USB To Serial Driver
USB HP4x Calculators support
USB Safe Serial (Encapsulated) Driver
USB Siemens MPI driver
USB Sierra Wireless Driver
USB Symbol Barcode driver (serial mode)
USB TI 3410/5052 Serial Driver
USB REINER SCT cyberJack pinpad/e-com chipcard reader
USB Xircom / Entregra Single Port Serial Driver
USB driver for GSM and CDMA modems
USB ZyXEL omni.net LCD Plus Driver
USB Opticon Barcode driver (serial mode)
USB ViVOpay serial interface driver
ZIO Motherboard USB serial interface driver
USB Quatech SSU-100 Single Port Serial Driver
there could be other drivers floating around not included with the
kernel. (stick to the ones in the kernel if you can)
-Chris
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