This patch (as1382) changes the USB_EHCI_TT_NEWSCHED Kconfig option to be non-experimental and to default to Y. This option has existed for a long time, and I have not heard any complaints concerning it. By contrast, several people have reported that their devices could be made to work only by enabling the option. The point of changing the default is to cause the option to be enabled by distros that simply use the default settings for esoteric things like this. This change was motivated by Bugzilla #15649. Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> CC: David Brownell <david-b@xxxxxxxxxxx> --- Index: usb-2.6/drivers/usb/host/Kconfig =================================================================== --- usb-2.6.orig/drivers/usb/host/Kconfig +++ usb-2.6/drivers/usb/host/Kconfig @@ -72,8 +72,9 @@ config USB_EHCI_ROOT_HUB_TT from ARC, and has since changed hands a few times. config USB_EHCI_TT_NEWSCHED - bool "Improved Transaction Translator scheduling (EXPERIMENTAL)" - depends on USB_EHCI_HCD && EXPERIMENTAL + bool "Improved Transaction Translator scheduling" + depends on USB_EHCI_HCD + default y ---help--- This changes the periodic scheduling code to fill more of the low and full speed bandwidth available from the Transaction Translator @@ -84,9 +85,11 @@ config USB_EHCI_TT_NEWSCHED If you have multiple periodic low/fullspeed devices connected to a highspeed USB hub which is connected to a highspeed USB Host Controller, and some of those devices will not work correctly - (possibly due to "ENOSPC" or "-28" errors), say Y. + (possibly due to "ENOSPC" or "-28" errors), say Y. Conversely, if + you have only one such device and it doesn't work, you could try + saying N. - If unsure, say N. + If unsure, say Y. config USB_EHCI_BIG_ENDIAN_MMIO bool -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
