Sergei Shtylyov wrote:
> Hello!
>
> On 17.07.2020 0:58, Thinh Nguyen wrote:
>
>> USB 3.2 specification supports dual-lane for super-speed-plus. USB
>> devices may operate at different sublink speeds. To avoid using magic
>> numbers and capture the sublink speed better, introduce the
>> usb_sublink_speed structure and various sublink speed attribute enum.
>>
>> See SSP BOS descriptor in USB 3.2 specification section 9.6.2.5
>>
>> Signed-off-by: Thinh Nguyen <thinhn@xxxxxxxxxxxx>
>> ---
>> include/uapi/linux/usb/ch9.h | 42
>> ++++++++++++++++++++++++++++++++++++++++++
>> 1 file changed, 42 insertions(+)
>>
>> diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
>> index 2b623f36af6b..d4fd403a3664 100644
>> --- a/include/uapi/linux/usb/ch9.h
>> +++ b/include/uapi/linux/usb/ch9.h
>> @@ -1145,6 +1145,48 @@ enum usb_device_speed {
>> USB_SPEED_SUPER_PLUS, /* usb 3.1 */
>> };
>> +/* USB 3.2 sublink speed attributes */
>> +
>> +enum usb_lane_speed_exponent {
>> + USB_LSE_BPS = 0,
>> + USB_LSE_KBPS = 1,
>> + USB_LSE_MBPS = 2,
>> + USB_LSE_GBPS = 3,
>> +};
>> +
>> +enum usb_sublink_type {
>> + USB_ST_SYMMETRIC_RX = 0,
>> + USB_ST_ASYMMETRIC_RX = 1,
>> + USB_ST_SYMMETRIC_TX = 2,
>> + USB_ST_ASYMMETRIC_TX = 3,
>> +};
>> +
>> +enum usb_link_protocol {
>> + USB_LP_SS = 0,
>> + USB_LP_SSP = 1,
>> +};
>> +
>> +/**
>> + * struct usb_sublink_speed - sublink speed attribute
>> + * @id: sublink speed attribute ID (SSID)
>> + * @mantissa: lane speed mantissa
>> + * @exponent: lane speed exponent
>> + * @sublink type: sublink type
>
> It's called just 'type' below.
>
Will fix.
Thanks,
Thinh
