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Low data transfer from Ethernet to SDIO vs USB to SDIO

dany kiazada
Prodigy 10 points
Other Parts Discussed in Thread: AM3505

Hi,

Our device has WAN module connected to SDIO interface on TI AM3505 with 2.6.32 kernel

The set up is as follows:   PC is connected to our device via Ethernet or USB (Ethernet over USB) and a WAN module connected to SDIO interface

When running iPerf from the Ethernet interface to the WAN module we get 10% - 15% degradation in data transfer as compared to the USB to the WAN configuration.