If multiple USB buses exist, the output of the commands 'usb tree' and 'usb
info' is confusing because it is not clear where the output for a new bus
starts.

Print an additional line for each bus indicating the bus number, e.g.

=> usb tree
USB device tree:
USB bus 0
  1  Hub (5 Gb/s, 0mA)
     U-Boot XHCI Host Controller

USB bus 1
  1  Hub (5 Gb/s, 0mA)
     U-Boot XHCI Host Controller

Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
 cmd/usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cmd/usb.c b/cmd/usb.c
index 0ccb1b5148..6da945c376 100644
--- a/cmd/usb.c
+++ b/cmd/usb.c
@@ -470,6 +470,7 @@ static void usb_for_each_root_dev(usb_dev_func_t func)
                if (!device_active(bus))
                        continue;
 
+               printf("USB bus %d\n", bus->seq);
                device_find_first_child(bus, &dev);
                if (dev && device_active(dev)) {
                        udev = dev_get_parent_priv(dev);
-- 
2.19.2

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