Alan Stern 3155f4f408 USB: hub: Revert commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices") ... Commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices") changed the way the hub driver enumerates high-speed devices. Instead of using the "new" enumeration scheme first and switching to the "old" scheme if that doesn't work, we start with the "old" scheme. In theory this is better because the "old" scheme is slightly faster -- it involves resetting the device only once instead of twice. However, for a long time Windows used only the "new" scheme. Zeng Tao said that Windows 8 and later use the "old" scheme for high-speed devices, but apparently there are some devices that don't like it. William Bader reports that the Ricoh webcam built into his Sony Vaio laptop not only doesn't enumerate under the "old" scheme, it gets hung up so badly that it won't then enumerate under the "new" scheme! Only a cold reset will fix it. Therefore we will revert the commit and go back to trying the "new" scheme first for high-speed devices. Reported-and-tested-by: William Bader <williambader@hotmail.com> Ref: https://bugzilla.kernel.org/show_bug.cgi?id=207219 Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Fixes: bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices") CC: Zeng Tao <prime.zeng@hisilicon.com> CC: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/Pine.LNX.4.44L0.2004221611230.11262-100000@iolanthe.rowland.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-04-23 15:22:41 +02:00
..
buffer.c
config.c	USB: core: clean up endpoint-descriptor parsing	2020-02-10 11:14:22 -08:00
devices.c
devio.c	USB: usbfs: Always unlink URBs in reverse order	2020-01-17 17:57:04 +01:00
driver.c	USB: Fallback to generic driver when specific driver fails	2020-02-12 11:01:55 -08:00
endpoint.c
file.c
generic.c	USB: Fallback to generic driver when specific driver fails	2020-02-12 11:01:55 -08:00
hcd-pci.c	remove ioremap_nocache and devm_ioremap_nocache	2020-01-06 09:45:59 +01:00
hcd.c	USB: Fix incorrect DMA allocations for local memory pool drivers	2019-12-11 09:06:41 +01:00
hub.c	USB: hub: Revert commit bd0e6c9614 ("usb: hub: try old enumeration scheme first for high speed devices")	2020-04-23 15:22:41 +02:00
hub.h	USB: hub: Fix the broken detection of USB3 device in SMSC hub	2020-02-10 11:08:26 -08:00
Kconfig
ledtrig-usbport.c
Makefile
message.c	USB: core: Fix free-while-in-use bug in the USB S-Glibrary	2020-04-16 14:46:00 +02:00
notify.c
of.c
otg_whitelist.h
phy.c
phy.h
port.c	usb: core: port: do error out if usb_autopm_get_interface() fails	2020-03-04 10:58:16 +01:00
quirks.c	USB: Add USB_QUIRK_DELAY_CTRL_MSG and USB_QUIRK_DELAY_INIT for Corsair K70 RGB RAPIDFIRE	2020-04-16 15:27:52 +02:00
sysfs.c	usb: use kobj_to_dev() API	2020-02-14 08:38:15 -08:00
urb.c	usb: core: urb: fix URB structure initialization function	2019-12-10 11:41:19 +01:00
usb-acpi.c	usb: core: Use ACPI_SUCCESS() at appropriate places	2020-02-19 11:08:52 +01:00
usb.c
usb.h	Merge 5.6-rc3 into usb-next	2020-02-24 08:48:49 +01:00