On Mon, Aug 10, 2020 at 09:19:35AM +0900, Yasushi Asano wrote: > From: Yasushi Asano <yasano@xxxxxxxxxxxxxx> > > According to 6.7.22 A-UUT “Device No Response” for connection timeout > of USB OTG and EH automated compliance plan v1.2, the enumeration > failure has to be detected within 30 seconds. However, the old and new > enumeration schemes made a total of 16 attempts, and each attempt can > take 5 seconds to timeout, so it failed with PET test. Modify it to > reduce the number of attempts to 5 and pass PET test. > > in case of old_schene_first=N and use_both_schemes=Y > attempt 3 * new scheme, then 2 * old scheme > in case of old_schene_first=Y and use_both_schemes=Y > attempt 2 * old scheme, then 3 * new scheme > > Signed-off-by: Yasushi Asano <yasano@xxxxxxxxxxxxxx> > --- > drivers/usb/core/hub.c | 16 +++++++--------- > 1 file changed, 7 insertions(+), 9 deletions(-) Why is there a "[RFC]" on the subject line, do you not think this works properly? Does it work for your devices and solve the problem for you? thanks, greg k-h