diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/usb.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/usb.h b/include/usb.h index efb67ea33f..22f6088fe6 100644 --- a/include/usb.h +++ b/include/usb.h @@ -269,6 +269,7 @@ int usb_bulk_msg(struct usb_device *dev, unsigned int pipe, void *data, int len, int *actual_length, int timeout); int usb_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, int transfer_len, int interval, bool nonblock); +int usb_lock_async(struct usb_device *dev, int lock); int usb_disable_asynch(int disable); int usb_maxpacket(struct usb_device *dev, unsigned long pipe); int usb_get_configuration_no(struct usb_device *dev, int cfgno, @@ -791,6 +792,16 @@ struct dm_usb_ops { * in a USB transfer. USB class driver needs to be aware of this. */ int (*get_max_xfer_size)(struct udevice *bus, size_t *size); + + /** + * lock_async() - Keep async schedule after a transfer + * + * It may be desired to keep the asynchronous schedule running even + * after a transfer finishes, usually when doing multiple transfers + * back-to-back. This callback allows signalling the USB controller + * driver to do just that. + */ + int (*lock_async)(struct udevice *udev, int lock); }; #define usb_get_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops) |