usb: gadget: fastboot: explicitly set radix of maximum download size

The processing of the max-download-size variable requires a
radix specifier, or the fastboot host tool will interpret
it as an octal number.

See function get_target_sparse_limit() in file fastboot/fastboot.c
in the AOSP:
        https://android.googlesource.com/platform/system/core/+/master

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>

diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index 3e1c0a9faf29a1aeebb90e466614a7e3760ab619..392379dce4182caf509f60206b347eb89a8e3694 100644 (file)
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -355,7 +355,7 @@ static void cb_getvar(struct usb_ep *ep, struct usb_request *req)
                !strcmp_l1("max-download-size", cmd)) {
                char str_num[12];
 
-               sprintf(str_num, "%08x", CONFIG_USB_FASTBOOT_BUF_SIZE);
+               sprintf(str_num, "0x%08x", CONFIG_USB_FASTBOOT_BUF_SIZE);
                strncat(response, str_num, chars_left);
        } else if (!strcmp_l1("serialno", cmd)) {
                s = getenv("serial#");