From: Jean Tourrilhes <jt@bo...> - 2002-09-24 18:26:52
Thomas wrote :
> We have a IrDA encoder/decoder device. It can
> transmit/receive data upto 4 Mbps. The device can only
> transmit and receive data. There is no IrLAP or any
> other higher IrDA protocol stack functionality.
> We would like to test this device for basic infrared
> data transmission and reception. The test procdeure we
> intend to use is:
> 1. Buy a USB dongle for which linux device driver is
> written and supports data transmission upto 4 Mbps.
Not really recommended. The quality of those USB dongles is
not good. Most of them don't do back to back frame properly and have
For Linux support, please check the source of irda-usb.c
> 2. Directly use the that device driver to send and
> recieve data to/from our IrDA device. ( No IrLAP or
> higher layer functionality is used. )
Not recommended, because there is not a consistent interface
to those IrDA devices (for example, most USB dongles are accessed at
the LAP level with extra USB header).
The way to do that is to use IrDA test frames. This is
somewhat implemented in irdaping (but irdaping doesn't offer the
connected option which is necessary to do higher speed).
> If possible, please also provide the link from which
> the linux device driver can be downloaded for that
> Thanks for all your suggestions.
As I had mentioned in one of the previous mail, that
we have a infrared capable device which can transmit
and receive data. It just implements the IrDA physical
layer specification for slow, medium and fast IrDA. It
does not have the functionality of the higher protocol
We need to test if it correctly transmits and receives
data without any regard to the above protocol stack.
We intend to test our device with some other device
because we need to check it's inter-operabilty. But
other devices have the whole IrDA protocol stack and
hence we can't use it.
Is there any infrared capable device with which only
the physical layer testing can be done. If so, please
mention the kind of test setup that is required.
Thanks for all your suggestions.
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