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| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2021-01-14 05:52:46 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-18 20:38:47 +0300 |
| commit | f2fc9ff28d1c9bef7760516feadd38164044caae (patch) | |
| tree | 054444048354e69ce6b1f06d322f62d8d0ba3e42 /include/linux | |
| parent | 7766cafea0eca6a7cc0ffc947bc95be19295575f (diff) | |
| download | linux-f2fc9ff28d1c9bef7760516feadd38164044caae.tar.xz | |
usb: ch9: Add USB 3.2 SSP attributes
In preparation for USB 3.2 dual-lane support, add sublink speed
attribute macros and enum usb_ssp_rate. A USB device that operates in
SuperSpeed Plus may operate at different speed and lane count. These
additional macros and enum values help specifying that.
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/ae9293ebd63a29f2a2035054753534d9eb123d74.1610592135.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/usb/ch9.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h index 604c6c514a50..86c50907634e 100644 --- a/include/linux/usb/ch9.h +++ b/include/linux/usb/ch9.h @@ -36,6 +36,15 @@ #include <linux/device.h> #include <uapi/linux/usb/ch9.h> +/* USB 3.2 SuperSpeed Plus phy signaling rate generation and lane count */ + +enum usb_ssp_rate { + USB_SSP_GEN_UNKNOWN = 0, + USB_SSP_GEN_2x1, + USB_SSP_GEN_1x2, + USB_SSP_GEN_2x2, +}; + /** * usb_ep_type_string() - Returns human readable-name of the endpoint type. * @ep_type: The endpoint type to return human-readable name for. If it's not |