USB RNDIS Device Speed

[Guest Neeti]

Hi,

 

I have a USB RNDIS network device, which when connected to windows

machine shows a network connection. The windows RNDIS driver queries

OID_GEN_LINK_SPEED from device, what speed shall device return?

 

I am asking this question because:-

 

My device is a high speed device which means link speed is 480 Mbps.

But since my device implements BULK endpoint, the bandwidth allocated

to it will be 10% i.e Maximum 48 Mbps.

 

Now If I say the speed is 480 Mbps what will windows use it for? Will

the data transfers from window happen at speed of 480 Mbps or this OID

property is just to show the link speed in network connection status

window.

 

If windows use this value to do the know the data transfer rate the

performance will be hit because due to bulk endpoint Controller will

never allow more that 48 Mbps data transfer.

 

Can somebody help?

 

Navneet