Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-03-03 Thread liulongfang
On 2021/3/4 9:35, Peter Chen wrote: > On 21-02-27 11:31:00, liulongfang wrote: >> On 2021/2/26 16:38, Greg KH wrote: >>> On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: Our current XHCI hardware controller has been customized to only support USB 2.0 ports. >>> >>> That sound

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-03-03 Thread Peter Chen
On 21-02-27 11:31:00, liulongfang wrote: > On 2021/2/26 16:38, Greg KH wrote: > > On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: > >> Our current XHCI hardware controller has been customized to only > >> support USB 2.0 ports. > > > > That sounds like a spec violation, right? Why d

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-28 Thread liulongfang
On 2021/2/28 0:27, Alan Stern Wrote: > On Sat, Feb 27, 2021 at 11:38:08AM +0800, liulongfang wrote: >> On 2021/2/27 0:30, Alan Stern wrote: >>> On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: Our current XHCI hardware controller has been customized to only support USB 2.0 po

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-27 Thread Alan Stern
On Sat, Feb 27, 2021 at 11:38:08AM +0800, liulongfang wrote: > On 2021/2/27 0:30, Alan Stern wrote: > > On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: > >> Our current XHCI hardware controller has been customized to only > >> support USB 2.0 ports. When using the current xhci driver,

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread liulongfang
On 2021/2/27 11:38, liulongfang wrote: > On 2021/2/27 0:30, Alan Stern wrote: >> On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: >>> Our current XHCI hardware controller has been customized to only >>> support USB 2.0 ports. When using the current xhci driver, an xhci >>> controller d

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread liulongfang
On 2021/2/27 0:30, Alan Stern wrote: > On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: >> Our current XHCI hardware controller has been customized to only >> support USB 2.0 ports. When using the current xhci driver, an xhci >> controller device and an ehci controller device will be c

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread liulongfang
On 2021/2/26 17:22, Mathias Nyman wrote: > On 26.2.2021 10.21, Longfang Liu wrote: >> Our current XHCI hardware controller has been customized to only >> support USB 2.0 ports. When using the current xhci driver, an xhci >> controller device and an ehci controller device will be created >> automati

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread liulongfang
On 2021/2/26 16:38, Greg KH wrote: > On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: >> Our current XHCI hardware controller has been customized to only >> support USB 2.0 ports. > > That sounds like a spec violation, right? Why do you want to do this? > > greg k-h > . > I hope to

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread Alan Stern
On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: > Our current XHCI hardware controller has been customized to only > support USB 2.0 ports. When using the current xhci driver, an xhci > controller device and an ehci controller device will be created > automatically. That sentence mak

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread Mathias Nyman
On 26.2.2021 10.21, Longfang Liu wrote: > Our current XHCI hardware controller has been customized to only > support USB 2.0 ports. When using the current xhci driver, an xhci > controller device and an ehci controller device will be created > automatically. We want the driver to create only one eh

Re: [RFC PATCH] USB:XHCI:Modify XHCI driver for USB2.0 controller

2021-02-26 Thread Greg KH
On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: > Our current XHCI hardware controller has been customized to only > support USB 2.0 ports. That sounds like a spec violation, right? Why do you want to do this? greg k-h