[U-Boot] Issue with USB mass storage (thumb drives)

[Fabio Estevam]

On Thu, Feb 18, 2016 at 1:32 PM, Marek Vasut <marex at denx.de> wrote:

>> Also one of our customers tested a few non-working sticks with this
>> change and reported, that it fixed it for him.
>> Here's a list of those devices, but I guess there are a lot more:
>>
>> 1. Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash
>> Drive, VID: 0x090c, PID: 0x1000
>> 2. Freecom Technologies, VID: 0x07ab, PID: 0xfcf1
>> 3. Newron, VID: 0x8644, PID: 0x800e
>> 4. GEMBIRD PhotoFrame PF-15-1, VID:  0x1908, PID: 0x1320
>>
> Maybe we need a quirk table then ?

It seems the list of affected devices is unknown.

What would be the impact of changing USB_MAX_XFER_BLK from 65535 to 32767?

Would this impact the USB transfer rate? Frieder, do you know?