usb: wusbcore: set the RPIPE wMaxPacketSize value correctly
For isochronous endpoints, set the RPIPE wMaxPacketSize value using wOverTheAirPacketSize from the endpoint companion descriptor instead of wMaxPacketSize from the normal endpoint descriptor. Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Родитель
df101c531e
Коммит
7b6bc07ab5
|
@ -334,7 +334,10 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
|
|||
/* FIXME: compute so seg_size > ep->maxpktsize */
|
||||
rpipe->descr.wBlocks = cpu_to_le16(16); /* given */
|
||||
/* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */
|
||||
rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize);
|
||||
if (usb_endpoint_xfer_isoc(&ep->desc))
|
||||
rpipe->descr.wMaxPacketSize = epcd->wOverTheAirPacketSize;
|
||||
else
|
||||
rpipe->descr.wMaxPacketSize = ep->desc.wMaxPacketSize;
|
||||
|
||||
rpipe->descr.hwa_bMaxBurst = max(min_t(unsigned int,
|
||||
epcd->bMaxBurst, 16U), 1U);
|
||||
|
|
Загрузка…
Ссылка в новой задаче