Hi Felipe,
On 08/20/2015 05:35 PM, Felipe Balbi wrote:
[...]
just letting you know that this regresses all gadget drivers making them
try to disable previously disabled endpoints and enable previously
enabled endpoints.
I have a possible fix (see below) but then it shows a problem on the
host side when using with g_zero (see further below):
commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
Author: Felipe Balbi <balbi@xxxxxx>
Date: Wed Aug 19 18:05:27 2015 -0500
usb: gadget: fix ep->claimed lifetime
In order to fix a regression introduced by commit
cc476b42a39d ("usb: gadget: encapsulate endpoint
claiming mechanism") we have to introduce a simple
helper to check if a particular is enabled or not.
After that, we need to move ep->claimed lifetime to
usb_ep_enable() and usb_ep_disable() since those
are the only functions which actually enable and
disable endpoints.
A follow-up patch will come to drop all driver_data
checks from function drivers, since those are, now,
pointless.
Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
claiming mechanism")
Cc: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 978435a51038..ad45070cd76f 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -126,7 +126,6 @@ found_ep:
ep->address = desc->bEndpointAddress;
ep->desc = NULL;
ep->comp_desc = NULL;
- ep->claimed = true;
Removing this line causes autoconfig can return the same endpoint many
times. This probably causes problems with g_zero.
I will try to fix it ASAP.
Thanks,
Robert
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