svn commit: r331306 - head/sys/dev/usb/controller
Hans Petter Selasky
hps at selasky.org
Wed Mar 21 15:37:57 UTC 2018
On 03/21/18 16:24, Kyle Evans wrote:
>> + {
>> + .ep_end = 7,
>> + .ep_fifosz_shift = 9,
>> + .ep_fifosz_reg = MUSB2_VAL_FIFOSZ_512 | MUSB2_MASK_FIFODB,
>> + },
> I'm afraid I'm not familiar with this- why did .ep_fifosz_shift for
> this case drop to 9? frx = 10 in the temp < 8 case in the removals of
> the following hunks. Mostly curious because the others seemed to stay
> the same.
>
Hi Andrew,
It might be an idea to keep the fifosz_shift at 10, else high-speed BULK
traffic won't be double buffered, and this might affect performance.
--HPS
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