ADB on linux: Handle USB SuperSpeed extra Descriptors
Under Linux, ADB manually parses USB Descriptors to check for
possible ADB USB Interfaces. USB Devices connected with SuperSpeed
will exhibit extra USB SuperSpeed Endpoint Companion Descriptors.
This patch handles these USB SuperSpeed specific USB Descriptors.
Change-Id: Icd1e5fdde0b324c7df4f933583499f2c52a922f3
Signed-off-by: Ingo Rohloff <lundril@gmx.de>
diff --git a/adb/usb_linux.c b/adb/usb_linux.c
index 8ff753e..7973cb0 100644
--- a/adb/usb_linux.c
+++ b/adb/usb_linux.c
@@ -237,8 +237,20 @@
// looks like ADB...
ep1 = (struct usb_endpoint_descriptor *)bufptr;
bufptr += USB_DT_ENDPOINT_SIZE;
+ // For USB 3.0 SuperSpeed devices, skip potential
+ // USB 3.0 SuperSpeed Endpoint Companion descriptor
+ if (bufptr+2 <= devdesc + desclength &&
+ bufptr[0] == USB_DT_SS_EP_COMP_SIZE &&
+ bufptr[1] == USB_DT_SS_ENDPOINT_COMP) {
+ bufptr += USB_DT_SS_EP_COMP_SIZE;
+ }
ep2 = (struct usb_endpoint_descriptor *)bufptr;
bufptr += USB_DT_ENDPOINT_SIZE;
+ if (bufptr+2 <= devdesc + desclength &&
+ bufptr[0] == USB_DT_SS_EP_COMP_SIZE &&
+ bufptr[1] == USB_DT_SS_ENDPOINT_COMP) {
+ bufptr += USB_DT_SS_EP_COMP_SIZE;
+ }
if (bufptr > devdesc + desclength ||
ep1->bLength != USB_DT_ENDPOINT_SIZE ||