diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2015-06-17 21:33:53 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:36 -0600 |
| commit | fd1bd21bf07d0770bff7b477d501b706dac9987d (patch) | |
| tree | 445fde217c90b8eb340f8a4599bf2947e544920e /common | |
| parent | b2f219b081de964583a5621bc59d43eb75521598 (diff) | |
dm: usb: Do not assume that first child is always a hub
On some single port (otg) controllers there is no emulated root hub, so
the first child (if any) may be one of: UCLASS_MASS_STORAGE,
UCLASS_USB_DEV_GENERIC or UCLASS_USB_HUB.
All three of these (and in the future others) are suitable for our
purposes, remove the check for the device being a hub, and add a check to
deal with the fact that there may be no child-dev.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_usb.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/common/cmd_usb.c b/common/cmd_usb.c index ca06826901..2ed4cb474f 100644 --- a/common/cmd_usb.c +++ b/common/cmd_usb.c @@ -630,12 +630,11 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) bus; uclass_next_device(&bus)) { struct usb_device *udev; - struct udevice *hub; + struct udevice *dev; - device_find_first_child(bus, &hub); - if (device_get_uclass_id(hub) == UCLASS_USB_HUB && - device_active(hub)) { - udev = dev_get_parentdata(hub); + device_find_first_child(bus, &dev); + if (dev && device_active(dev)) { + udev = dev_get_parentdata(dev); usb_show_tree(udev); } } |