On Wed, 29 Aug 2012, Lan Tianyu wrote: > Hi Alan: > Do you have some advices on this patch? I current have two proposals. > 1) Add a new routine to get port connection before port's device being > created and being bound with ACPI. The routine first need to get port's acpi > handle and then get connection information. The routine doesn't save port's > acpi > handle. > 2) keep my current code except the second time of getting hub > descriptor, > Set DeviceRemovable in the hub_configue() after ports' device being created. > Looking forward for your comments. Thanks.
Even though 2) would be simpler, I think 1) would be a better approach. The new routine could be called by register_root_hub() in hcd.c, and the connection information could be stored in the hcd's usb_bus structure. Then ehci_hub_descriptor() could get the information from there. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
