Re: [PATCH 0/2] USB 3.2 initial support

2018-03-15 Thread Oliver Neukum
Am Donnerstag, den 15.03.2018, 09:33 +0200 schrieb Mathias Nyman: > On 14.03.2018 12:29, Oliver Neukum wrote: > > > > We should also export all raw data we have. User space can be trusted > > to get a multiplication right and it is not the kernels job > > to interpret such data. > > Do I

Re: [PATCH 0/2] USB 3.2 initial support

2018-03-15 Thread Mathias Nyman
On 14.03.2018 12:29, Oliver Neukum wrote: Am Dienstag, den 13.03.2018, 19:22 +0200 schrieb Mathias Nyman: My understanding is that Gen XxY notion is only used for symmetric devices where tx lanes = rx lanes. Only SSIC devices can be asymmetric. USB 3.2 spec mentions the (Gen 1x1, 1x2, 2x1 and

Re: [PATCH 0/2] USB 3.2 initial support

2018-03-14 Thread Oliver Neukum
Am Dienstag, den 13.03.2018, 19:22 +0200 schrieb Mathias Nyman: > My understanding is that Gen XxY notion is only used for symmetric devices > where tx lanes = rx lanes. Only SSIC devices can be asymmetric. > > USB 3.2 spec mentions the (Gen 1x1, 1x2, 2x1 and 2x2) alternatives, nothing > more.

Re: [PATCH 0/2] USB 3.2 initial support

2018-03-14 Thread Mathias Nyman
On 13.03.2018 21:58, Adrian Bocaniciu wrote: On Tue, 13 Mar 2018 17:27:21 +0200 Mathias Nyman wrote: Example for clarification: Gen 1x1 = 5Gbps, SuperSpeed, one lane, same as USB3.0, and USB 3.1 Gen1 Gen 2x1 = 10Gbps, SuperSpeedPlus, one lane, same as USB 3.1

Re: [PATCH 0/2] USB 3.2 initial support

2018-03-13 Thread Adrian Bocaniciu
On Tue, 13 Mar 2018 17:27:21 +0200 Mathias Nyman wrote: > Example for clarification: > Gen 1x1 = 5Gbps, SuperSpeed, one lane, same as USB3.0, and USB 3.1 Gen1 > Gen 2x1 = 10Gbps, SuperSpeedPlus, one lane, same as USB 3.1 Gen2 > Gen 1x2 = 10Gbps, SuperSpeed,

Re: [PATCH 0/2] USB 3.2 initial support

2018-03-13 Thread Mathias Nyman
On 13.03.2018 17:27, Felipe Balbi wrote: Hi, Mathias Nyman writes: The USB 3.2 specification adds support for Dual-lane, doubling the maximum rate to 20Gbps by taking into use another set of rx and tx wires and pins in the Type-C cable and connector. The

Re: [PATCH 0/2] USB 3.2 initial support

2018-03-13 Thread Felipe Balbi
Hi, Mathias Nyman writes: > The USB 3.2 specification adds support for Dual-lane, doubling the > maximum rate to 20Gbps by taking into use another set of rx and tx > wires and pins in the Type-C cable and connector. > > The changes to support this in USB core and