robin.thoni/ipxe - git rthoni.com

Michael Brown a2173fca45 [usb] Do not call usb_hotplug() when registering a new hub The action of registering a new hub can itself happen in only two ways: either a new USB hub has been created (in which case we are already inside a call to usb_hotplug()), or a new root hub has been created. In the former case, we do not need to issue a further call to usb_hotplug(), since the hub's ports will all be marked as changed and so will be handled after the return from register_usb_hub() anyway. Calling usb_hotplug() within register_usb_hub() leads to a confusing order of events, such as: - root hub port 1 detects a change - root hub port 2 detects a change - usb_hotplug() is called - root hub port 1 finds a USB hub - usb_hotplug() is called - this inner call to usb_hotplug() handles root hub port 2 Fix by calling usb_hotplug() only from usb_step() and from register_usb_bus(). This avoids recursive calls to usb_hotplug() and ensures that devices are enumerated in the order of detection. Tested-by: Robin Smidsrød <robin@smidsrod.no> Signed-off-by: Michael Brown <mcb30@ipxe.org>		9 gadus atpakaļ
contrib	[errdb] Strip platform error code for non-platform-generated errors	11 gadus atpakaļ
src	[usb] Do not call usb_hotplug() when registering a new hub	9 gadus atpakaļ
COPYING	[legal] Update GPLv2 licence text	9 gadus atpakaļ
COPYING.GPLv2	[legal] Update GPLv2 licence text	9 gadus atpakaļ
COPYING.UBDL	[legal] Add support for the Unmodified Binary Distribution Licence	9 gadus atpakaļ
README	[doc] Re-add README file	14 gadus atpakaļ

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org