diff options
| -rw-r--r-- | drivers/usb/gadget/serial.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 51db0ee35b5a..b2045aefb619 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -79,21 +79,7 @@ static struct usb_device_descriptor device_desc = { .bNumConfigurations = 1, }; -static struct usb_otg_descriptor otg_descriptor = { - .bLength = sizeof otg_descriptor, - .bDescriptorType = USB_DT_OTG, - - /* REVISIT SRP-only hardware is possible, although - * it would not be called "OTG" ... - */ - .bmAttributes = USB_OTG_SRP | USB_OTG_HNP, - .bcdOTG = cpu_to_le16(0x0200), -}; - -static const struct usb_descriptor_header *otg_desc[] = { - (struct usb_descriptor_header *) &otg_descriptor, - NULL, -}; +static const struct usb_descriptor_header *otg_desc[2]; /*-------------------------------------------------------------------------*/ @@ -192,6 +178,16 @@ static int __init gs_bind(struct usb_composite_dev *cdev) serial_config_driver.iConfiguration = status; if (gadget_is_otg(cdev->gadget)) { + if (!otg_desc[0]) { + struct usb_descriptor_header *usb_desc; + + usb_desc = usb_otg_descriptor_alloc(cdev->gadget); + if (!usb_desc) + return -ENOMEM; + usb_otg_descriptor_init(cdev->gadget, usb_desc); + otg_desc[0] = usb_desc; + otg_desc[1] = NULL; + } serial_config_driver.descriptors = otg_desc; serial_config_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP; } @@ -228,6 +224,10 @@ static int gs_unbind(struct usb_composite_dev *cdev) usb_put_function(f_serial[i]); usb_put_function_instance(fi_serial[i]); } + + kfree(otg_desc[0]); + otg_desc[0] = NULL; + return 0; } |