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authorFelipe Balbi <felipe.balbi@linux.intel.com>2017-11-14 12:27:24 +0200
committerFelipe Balbi <felipe.balbi@linux.intel.com>2017-12-11 12:36:48 +0200
commitc7000aa030ee098e59d126325805f5037d155a48 (patch)
tree537ce4cff46fb454f2572a42c76eef0e140bc9f1
parent0c5d2954f690ead3c4f81dbd673b71bd84be04e5 (diff)
usb: gadget: add isoch_delay member
Whenever a USB host issues a Set Isoch Delay request, we should cache the result so relevant gadget drivers can make use of the value for calculating how many uFrames ahead a transfer should be queued. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
-rw-r--r--include/linux/usb/gadget.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 0142f3af0da6..66a5cff7ee14 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -330,6 +330,7 @@ struct usb_gadget_ops {
* @name: Identifies the controller hardware type. Used in diagnostics
* and sometimes configuration.
* @dev: Driver model state for this abstract device.
+ * @isoch_delay: value from Set Isoch Delay request. Only valid on SS/SSP
* @out_epnum: last used out ep number
* @in_epnum: last used in ep number
* @mA: last set mA value
@@ -394,6 +395,7 @@ struct usb_gadget {
enum usb_device_state state;
const char *name;
struct device dev;
+ unsigned isoch_delay;
unsigned out_epnum;
unsigned in_epnum;
unsigned mA;