usb: Avoid open-coded USB constants in usb_kbd.c
Replace the open-coded values with constants to make it clearer what they
mean.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 1d85212..069fbd2 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -411,13 +411,13 @@
iface = &dev->config.if_desc[ifnum];
- if (iface->desc.bInterfaceClass != 3)
+ if (iface->desc.bInterfaceClass != USB_CLASS_HID)
return 0;
- if (iface->desc.bInterfaceSubClass != 1)
+ if (iface->desc.bInterfaceSubClass != USB_SUB_HID_BOOT)
return 0;
- if (iface->desc.bInterfaceProtocol != 1)
+ if (iface->desc.bInterfaceProtocol != USB_PROT_HID_KEYBOARD)
return 0;
if (iface->desc.bNumEndpoints != 1)
@@ -626,8 +626,8 @@
USB_DEVICE_ID_MATCH_INT_SUBCLASS |
USB_DEVICE_ID_MATCH_INT_PROTOCOL,
.bInterfaceClass = USB_CLASS_HID,
- .bInterfaceSubClass = 1,
- .bInterfaceProtocol = 1,
+ .bInterfaceSubClass = USB_SUB_HID_BOOT,
+ .bInterfaceProtocol = USB_PROT_HID_KEYBOARD,
},
{ } /* Terminating entry */
};