On 06/28/2017 10:28 AM, Bin Meng wrote:
Hi Marek,
On Tue, Jun 27, 2017 at 7:57 AM, Bin Meng bmeng.cn@gmail.com wrote:
Hi Marek,
On Tue, Jun 27, 2017 at 2:06 AM, Marek Vasut marex@denx.de wrote:
On 06/24/2017 03:53 AM, Bin Meng wrote:
Hi Marek,
On Sat, Jun 24, 2017 at 1:59 AM, Marek Vasut marex@denx.de wrote:
On 06/23/2017 11:54 AM, Bin Meng wrote:
USB 3.0 hub port status field has different bit positions from 2.0 hubs. Since U-Boot only understands the old version, translate the new one into the old one.
This is quite hairy. I'd rather see some protocol version agnostic flag field rather than patching the wPortStatus and co.
I am not sure how do do that in a clean way. If we return the raw 3.0 hub port status data, that means we need change lot of hub codes here and there to do different parsing.
How does Linux handle this?
Looks Linux is doing different parsing depending on hub is 3.0 or 2.0, at least for the power bit that I was just looking at. Do you want to do that?
OK, I will do something similar like Linux in v2.
Thanks