[PATCH] USB: Driver for Freescale QUICC Engine USB Host Controller

Alan Stern stern at rowland.harvard.edu
Wed Dec 24 13:45:09 EST 2008


On Wed, 24 Dec 2008, Anton Vorontsov wrote:

> This patch adds support for the FHCI USB controller, as found
> in the Freescale MPC836x and MPC832x processors. It can support
> Full or Low speed modes.
> 
> Quite a lot the hardware is doing by itself (SOF generation, CRC
> generation and checking), though scheduling and retransmission is on
> software's shoulders.
> 
> This controller does not integrate the root hub, so this driver also
> fakes one-port hub. External hub is required to support more than
> one device.

It looks like the kernel this was written for is several versions out 
of date.  The driver is missing some critical calls to functions like 
usb_hcd_link_urb_to_ep().

Alan Stern




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