|
Lines 4830-4836
hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
Link Here
|
| 4830 |
const char *driver_name; |
4830 |
const char *driver_name; |
| 4831 |
bool do_new_scheme; |
4831 |
bool do_new_scheme; |
| 4832 |
const bool initial = !dev_descr; |
4832 |
const bool initial = !dev_descr; |
| 4833 |
int maxp0; |
4833 |
int maxp0, ep0_maxp; |
| 4834 |
struct usb_device_descriptor *buf, *descr; |
4834 |
struct usb_device_descriptor *buf, *descr; |
| 4835 |
|
4835 |
|
| 4836 |
buf = kmalloc(GET_DESCRIPTOR_BUFSIZE, GFP_NOIO); |
4836 |
buf = kmalloc(GET_DESCRIPTOR_BUFSIZE, GFP_NOIO); |
|
Lines 5070-5076
hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
Link Here
|
| 5070 |
else |
5070 |
else |
| 5071 |
i = 0; /* Invalid */ |
5071 |
i = 0; /* Invalid */ |
| 5072 |
} |
5072 |
} |
| 5073 |
if (usb_endpoint_maxp(&udev->ep0.desc) == i) { |
5073 |
ep0_maxp = usb_endpoint_maxp(&udev->ep0.desc); |
|
|
5074 |
if (ep0_maxp == i) { |
| 5074 |
; /* Initial ep0 maxpacket guess is right */ |
5075 |
; /* Initial ep0 maxpacket guess is right */ |
| 5075 |
} else if ((udev->speed == USB_SPEED_FULL || |
5076 |
} else if ((udev->speed == USB_SPEED_FULL || |
| 5076 |
udev->speed == USB_SPEED_HIGH) && |
5077 |
udev->speed == USB_SPEED_HIGH) && |
|
Lines 5082-5090
hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1,
Link Here
|
| 5082 |
dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); |
5083 |
dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); |
| 5083 |
udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); |
5084 |
udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); |
| 5084 |
usb_ep0_reinit(udev); |
5085 |
usb_ep0_reinit(udev); |
|
|
5086 |
} else if (udev->speed >= USB_SPEED_SUPER && initial) { |
| 5087 |
/* FIXME: should be more restrictive? */ |
| 5088 |
/* Initial guess is wrong; use the descriptor's value */ |
| 5089 |
dev_info(&udev->dev, "Using ep0 maxpacket: %d\n", i); |
| 5090 |
udev->ep0.desc.wMaxPacketSize = cpu_to_le16(maxp0); |
| 5091 |
usb_ep0_reinit(udev); |
| 5085 |
} else { |
5092 |
} else { |
| 5086 |
/* Initial guess is wrong and descriptor's value is invalid */ |
5093 |
/* Initial guess is wrong and descriptor's value is invalid */ |
| 5087 |
dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", maxp0); |
5094 |
dev_err(&udev->dev, "Invalid ep0 maxpacket: %d, expected %d\n", maxp0, ep0_maxp); |
| 5088 |
retval = -EMSGSIZE; |
5095 |
retval = -EMSGSIZE; |
| 5089 |
goto fail; |
5096 |
goto fail; |
| 5090 |
} |
5097 |
} |
| 5091 |
- |
|
|