Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-25 Thread Greg Kroah-Hartman
On Wed, May 23, 2018 at 10:16:56AM +0800, Nicolas Boichat wrote: > The "old" enumeration scheme is considerably faster (it takes > ~294ms instead of ~439ms to get the descriptor). > > It is currently only possible to use the old scheme globally > (/sys/module/usbcore/parameters/old_scheme_first),

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-25 Thread Greg Kroah-Hartman
On Fri, May 25, 2018 at 06:05:16AM +0800, Nicolas Boichat wrote: > On Fri, May 25, 2018 at 12:21 AM, Greg Kroah-Hartman > wrote: > > On Thu, May 24, 2018 at 07:42:00AM +0800, Nicolas Boichat wrote: > >> On Thu, May 24, 2018 at 12:39 AM, Greg Kroah-Hartman > >>

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-24 Thread Nicolas Boichat
On Fri, May 25, 2018 at 12:21 AM, Greg Kroah-Hartman wrote: > On Thu, May 24, 2018 at 07:42:00AM +0800, Nicolas Boichat wrote: >> On Thu, May 24, 2018 at 12:39 AM, Greg Kroah-Hartman >> wrote: >> > On Wed, May 23, 2018 at 10:03:55AM -0400,

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-24 Thread Greg Kroah-Hartman
On Thu, May 24, 2018 at 07:42:00AM +0800, Nicolas Boichat wrote: > On Thu, May 24, 2018 at 12:39 AM, Greg Kroah-Hartman > wrote: > > On Wed, May 23, 2018 at 10:03:55AM -0400, Alan Stern wrote: > >> On Wed, 23 May 2018, Nicolas Boichat wrote: > >> > >> > The "old"

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-24 Thread Alan Stern
On Thu, 24 May 2018, Nicolas Boichat wrote: > On Thu, May 24, 2018 at 12:39 AM, Greg Kroah-Hartman > wrote: > > On Wed, May 23, 2018 at 10:03:55AM -0400, Alan Stern wrote: > >> On Wed, 23 May 2018, Nicolas Boichat wrote: > >> > >> > The "old" enumeration scheme is

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-23 Thread Nicolas Boichat
On Thu, May 24, 2018 at 12:39 AM, Greg Kroah-Hartman wrote: > On Wed, May 23, 2018 at 10:03:55AM -0400, Alan Stern wrote: >> On Wed, 23 May 2018, Nicolas Boichat wrote: >> >> > The "old" enumeration scheme is considerably faster (it takes >> > ~294ms instead of ~439ms

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-23 Thread Greg Kroah-Hartman
On Wed, May 23, 2018 at 10:03:55AM -0400, Alan Stern wrote: > On Wed, 23 May 2018, Nicolas Boichat wrote: > > > The "old" enumeration scheme is considerably faster (it takes > > ~294ms instead of ~439ms to get the descriptor). > > > > It is currently only possible to use the old scheme globally

Re: [PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-23 Thread Alan Stern
On Wed, 23 May 2018, Nicolas Boichat wrote: > The "old" enumeration scheme is considerably faster (it takes > ~294ms instead of ~439ms to get the descriptor). > > It is currently only possible to use the old scheme globally > (/sys/module/usbcore/parameters/old_scheme_first), which is not >

[PATCH] usb: hub: Per-port setting to use old enumeration scheme

2018-05-22 Thread Nicolas Boichat
The "old" enumeration scheme is considerably faster (it takes ~294ms instead of ~439ms to get the descriptor). It is currently only possible to use the old scheme globally (/sys/module/usbcore/parameters/old_scheme_first), which is not desirable as the new scheme was introduced to increase