Enable high speed support for USB device framework and usbtty

[oweals/u-boot.git] / README

diff --git a/README b/README
index b69a3b6f6edc96c58491249d0f6665d07ea31987..0ab689257eba10011bd9a5f6fbfdd5e29641d7ca 100644 (file)
--- a/README
+++ b/README
@@ -1148,6 +1148,14 @@ The following options need to be configured:
                        Define this to have a tty type of device available to
                        talk to the UDC device
 
+                       CONFIG_USBD_HS
+                       Define this to enable the high speed support for usb
+                       device and usbtty. If this feature is enabled, a routine
+                       int is_usbd_high_speed(void)
+                       also needs to be defined by the driver to dynamically poll
+                       whether the enumeration has succeded at high speed or full
+                       speed.
+
                        CONFIG_SYS_CONSOLE_IS_IN_ENV
                        Define this if you want stdin, stdout &/or stderr to
                        be set to usbtty.