fastboot: add fb_getvar
Add an fb_getvar helper that can be used to get values from the
target.
Change-Id: I0da088fcbc8d40076c7bf5ef6e5bbd97fae61471
diff --git a/fastboot/fastboot.h b/fastboot/fastboot.h
index 1d3e2b8..a84b0be 100644
--- a/fastboot/fastboot.h
+++ b/fastboot/fastboot.h
@@ -41,6 +41,7 @@
#define FB_RESPONSE_SZ 64
/* engine.c - high level command queue engine */
+int fb_getvar(struct usb_handle *usb, char *response, const char *fmt, ...);
void fb_queue_flash(const char *ptn, void *data, unsigned sz);;
void fb_queue_erase(const char *ptn);
void fb_queue_format(const char *ptn, int skip_if_not_supported);