summaryrefslogtreecommitdiff
path: root/include/linux/usb
diff options
context:
space:
mode:
authorThinh Nguyen <Thinh.Nguyen@synopsys.com>2021-01-14 05:52:46 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-01-18 20:38:47 +0300
commitf2fc9ff28d1c9bef7760516feadd38164044caae (patch)
tree054444048354e69ce6b1f06d322f62d8d0ba3e42 /include/linux/usb
parent7766cafea0eca6a7cc0ffc947bc95be19295575f (diff)
downloadlinux-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/usb')
-rw-r--r--include/linux/usb/ch9.h9
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