From: Yasushi Asano <yasano@xxxxxxxxxxxxxx>
Hello Alan,
Thank you for the feedback. I added the information in the commit.
I reconsidered the reduction place in the number of attempts.
Since I don't want to miss 2nd reset[1] or do not change the timing of power cycling the port[2],
I changed to reduce attempts from the nearest enclosing loop.
I'm sorry to trouble you, please confirm it again.
[1]
/*
* Some devices time out if they are powered on
* when already connected. They need a second
* reset. But only on the first attempt,
* lest we get into a time out/reset loop
*/
if (r == 0 || (r == -ETIMEDOUT &&
retries == 0 &&
udev->speed > USB_SPEED_FULL))
break;
[2]
/* When halfway through our retry count, power-cycle the port */
if (i == (SET_CONFIG_TRIES / 2) - 1) {
Yasushi Asano (1):
[RFC] USB: hub.c: decrease the number of attempts of enumeration
scheme
drivers/usb/core/hub.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
--
2.7.4
