diff options
| author | Julius Werner <jwerner@chromium.org> | 2013-04-15 15:55:04 -0700 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2013-06-05 16:41:47 -0700 |
| commit | 01c5f4477d527732ecaf92d9b3d2201c8030000b (patch) | |
| tree | 408de03b6f45f1127290b49bb416bbb2dc35b5e7 /drivers/usb/host/xhci.h | |
| parent | 0c967e7ecdc2cf42853b4c76f0b2e94ba53c5b92 (diff) | |
| download | linux-next-01c5f4477d527732ecaf92d9b3d2201c8030000b.tar.gz | |
usb: xhci-dbg: Display endpoint number and direction in context dump
When CONFIG_XHCI_HCD_DEBUGGING is activated, the XHCI driver can dump
device and input contexts to the console. The endpoint contexts in that
dump are labeled "Endpoint N Context", where N is the XHCI endpoint
index (DCI - 1). This can be very confusing, especially for people who
are not that familiar with the XHCI specification. This patch introduces
an xhci_get_endpoint_address function (as a counterpart to the reverse
xhci_get_endpoint_index), and uses it to additionally display the
endpoint number and direction when dumping contexts, which are much more
commonly used concepts in USB.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 29c978e37135..3ee79d6fddae 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1641,6 +1641,7 @@ int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *ud void xhci_copy_ep0_dequeue_into_input_ctx(struct xhci_hcd *xhci, struct usb_device *udev); unsigned int xhci_get_endpoint_index(struct usb_endpoint_descriptor *desc); +unsigned int xhci_get_endpoint_address(unsigned int ep_index); unsigned int xhci_get_endpoint_flag(struct usb_endpoint_descriptor *desc); unsigned int xhci_get_endpoint_flag_from_index(unsigned int ep_index); unsigned int xhci_last_valid_endpoint(u32 added_ctxs); |