[U-Boot] [PATCH 04/11] usb: ehci: Support interrupt transfers via periodic list

Simon Glass sjg at chromium.org
Fri Dec 14 02:46:49 CET 2012


Hi,

On Thu, Dec 13, 2012 at 9:32 AM, Marek Vasut <marex at denx.de> wrote:
> Dear Simon Glass,
>
>> From: Patrick Georgi <patrick at georgi-clan.de>
>>
>> Interrupt transfers aren't meant to be used from the async list
>> (the EHCI spec indicates trouble with low/full-speed intr on async).
>>
>> Build a periodic list instead, and provide an API to make use of it.
>> Then, use that API from the existing interrupt transfer API.
>>
>> This provides support for USB keyboards using EHCI.
>>
>> Signed-off-by: Patrick Georgi <patrick at georgi-clan.de>
>> Signed-off-by: Simon Glass <sjg at chromium.org>
> [...]
>
> Looks good in general. Clear up those ToDos please. Also, some while() cycles
> are endless, make use of some timeout please.

Not much ability to do anything other than remove them...

The timeouts come in the next patch - should I squash them?

Regards,
Simon

>
> Best regards,
> Marek Vasut


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