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authorFelipe Balbi <felipe.balbi@linux.intel.com>2017-12-14 09:50:39 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-15 20:45:43 +0100
commit886ee36e7205a7b850e2e5c2298a479f581f9b3b (patch)
tree0c52649fb1d4fb87550c006c000b8fb1b037da16 /drivers/usb/misc
parent66222f0d4b0ffba0bae2a6a785dc6eaa67cf532e (diff)
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usb: core: add support for USB_REQ_SET_ISOCH_DELAY
USB SS and SSP hubs provide wHubDelay values on their hub descriptor which we should inform the USB Device about. The USB Specification 3.0 explains, on section 9.4.11, how to calculate the value and how to issue the request. Note that a USB_REQ_SET_ISOCH_DELAY is valid on all device states (Default, Address, Configured), we just *chose* to issue it from Address state right after successfully fetching the USB Device Descriptor. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/misc')
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