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Michael Brown 5d6fb72829 [usb] Clear device endpoint halt before resetting host endpoint 
Resetting the host endpoint may immediately restart any pending
transfers for that endpoint.  If the device endpoint halt has not yet
been cleared, then this will probably result in a second failed
transfer.

This second failure may be detected within usb_endpoint_reset() while
waiting for usb_clear_feature() to complete.  The endpoint will
subsequently be removed from the list of halted endpoints, causing the
second failure to be effectively ignored and leaving the host endpoint
in a permanently halted state.

Fix by deferring the host endpoint reset until after the device
endpoint is ready to accept new transfers.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
 		2020-07-02 03:06:50 +01:00
contrib [coverity] Override assumptions about wcrtomb() and hmac_init() 2019-08-17 17:18:54 +01:00
src [usb] Clear device endpoint halt before resetting host endpoint 2020-07-02 03:06:50 +01:00
.travis.yml [travis] Ensure that most recent tag is always available 2020-01-03 00:14:03 +01:00
COPYING [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.GPLv2 [legal] Update GPLv2 licence text 2015-02-26 17:59:53 +00:00
COPYING.UBDL [legal] Add support for the Unmodified Binary Distribution Licence 2015-03-02 12:07:14 +00:00
README [doc] Re-add README file 2010-05-28 00:03:47 +01:00

README 

iPXE README File

Quick start guide:

   cd src
   make

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