Hi David,
you wrote:
- Devices on some EHCI controllers could handle DMA to/from high memory.
Driver probe() routines can notice this using a generic DMA call, then
tell higher level code (network, scsi, etc) about it like this:
if (dma_supported (&intf->dev, 0xffffffffffffffffULL))
net->features |= NETIF_F_HIGHDMA;
There's no fixed connection with USB 2.0, is there?
So all net usb driver should do that, shouldn't they?
Regards
Oliver
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