From: Macpaul Lin <macpaul@xxxxxxxxx>
Add CONFIG_USB_OTG_VERSION to identify the OTG and EH supplement release number
with which the OTG device is compliant, also update the usb_otg_descriptor for
OTG 2.0 and later release to include this OTG version number.
Signed-off-by: Macpaul Lin <macpaul@xxxxxxxxx>
Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx>
---
drivers/usb/core/Kconfig | 11 +++++++++++
include/uapi/linux/usb/ch9.h | 7 ++++++-
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index cc0ced0..566a6c6 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -55,6 +55,17 @@ config USB_OTG
Select this only if your board has Mini-AB/Micro-AB
connector.
+config USB_OTG_VERSION
+ int "OTG and EH supplement release version number"
+ depends on USB_OTG
+ default 13
+ range 0 30
+ help
+ OTG and EH supplement release number(e.g. 13 is for OTG 1.3, 20 is
+ for OTG 2.0). This field will be converted to be bcdOTG in binary-coded
+ decimal of otg descriptor and identifies the release of the OTG and EH
+ supplement with which the device and its descriptors are compliant.
+
config USB_OTG_WHITELIST
bool "Rely on OTG and EH Targeted Peripherals List"
depends on USB
diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index aa33fd1..67204f1 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -666,12 +666,17 @@ struct usb_qualifier_descriptor {
/*-------------------------------------------------------------------------*/
-/* USB_DT_OTG (from OTG 1.0a supplement) */
+/* USB_DT_OTG */
struct usb_otg_descriptor {
__u8 bLength;
__u8 bDescriptorType;
__u8 bmAttributes; /* support for HNP, SRP, etc */
+#ifdef CONFIG_USB_OTG_VERSION
+#if CONFIG_USB_OTG_VERSION >= 20
+ __le16 bcdOTG; /* USB OTG version number */
+#endif
+#endif
} __attribute__ ((packed));
/* from usb_otg_descriptor.bmAttributes */
--
1.9.1
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