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USB: set the correct Interrupt interval in usb_bulk_msg 

This patch (as902) fixes a mistake I introduced into usb_bulk_msg().
usb_fill_int_urb() already does the bit-shifting calculation for
high-speed Interrupt intervals; it shouldn't be done twice.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
This commit is contained in:
Alan Stern 2007-04-23 17:30:32 -04:00 committed by Greg Kroah-Hartman
parent 762e92fa17
commit 8d062b9a35
1 changed files with 2 additions and 7 deletions
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9
drivers/usb/core/message.c
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@ -221,15 +221,10 @@ int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == if ((ep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
USB_ENDPOINT_XFER_INT) { USB_ENDPOINT_XFER_INT) {
int interval;
if (usb_dev->speed == USB_SPEED_HIGH)
interval = 1 << min(15, ep->desc.bInterval - 1);
else
interval = ep->desc.bInterval;
pipe = (pipe & ~(3 << 30)) | (PIPE_INTERRUPT << 30); pipe = (pipe & ~(3 << 30)) | (PIPE_INTERRUPT << 30);
usb_fill_int_urb(urb, usb_dev, pipe, data, len, usb_fill_int_urb(urb, usb_dev, pipe, data, len,
usb_api_blocking_completion, NULL, interval); usb_api_blocking_completion, NULL,
ep->desc.bInterval);
} else } else
usb_fill_bulk_urb(urb, usb_dev, pipe, data, len, usb_fill_bulk_urb(urb, usb_dev, pipe, data, len,
usb_api_blocking_completion, NULL); usb_api_blocking_completion, NULL);