From 7cce8398c923ff7e16e992ca751dd0c32b92c22a Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Tue, 20 Nov 2012 13:23:15 +0100 Subject: [PATCH] usb: gadget: dummy: fix enumeration with g_multi commit 1d16638e3b9cc195bac18a8fcbca748f33c1bc24 upstream. If we do have endpoints named like "ep-a" then bEndpointAddress is counted internally by the gadget framework. If we do have endpoints named like "ep-1" then bEndpointAddress is assigned from the digit after "ep-". If we do have both, then it is likely that after we used up the "generic" endpoints we will use the digits and thus assign one bEndpointAddress to multiple endpoints. This theory can be proofed by using the completely enabled g_multi. Without this patch, the mass storage won't enumerate and times out because it shares endpoints with RNDIS. This patch also adds fills up the endpoints list so we have in total endpoints 1 to 15 in + out available while some of them are restricted to certain types like BULK or ISO. Without this change the nokia gadget won't load because the system does not provide enough (BULK) endpoints but it did before ep-a - ep-f were removed. Signed-off-by: Sebastian Andrzej Siewior Acked-by: Alan Stern Signed-off-by: Felipe Balbi Signed-off-by: Ben Hutchings --- drivers/usb/gadget/dummy_hcd.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index d584eafccda3..c7423a7ec8f1 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -126,10 +126,7 @@ static const char ep0name [] = "ep0"; static const char *const ep_name [] = { ep0name, /* everyone has ep0 */ - /* act like a net2280: high speed, six configurable endpoints */ - "ep-a", "ep-b", "ep-c", "ep-d", "ep-e", "ep-f", - - /* or like pxa250: fifteen fixed function endpoints */ + /* act like a pxa250: fifteen fixed function endpoints */ "ep1in-bulk", "ep2out-bulk", "ep3in-iso", "ep4out-iso", "ep5in-int", "ep6in-bulk", "ep7out-bulk", "ep8in-iso", "ep9out-iso", "ep10in-int", "ep11in-bulk", "ep12out-bulk", "ep13in-iso", "ep14out-iso", @@ -137,6 +134,10 @@ static const char *const ep_name [] = { /* or like sa1100: two fixed function endpoints */ "ep1out-bulk", "ep2in-bulk", + + /* and now some generic EPs so we have enough in multi config */ + "ep3out", "ep4in", "ep5out", "ep6out", "ep7in", "ep8out", "ep9in", + "ep10out", "ep11out", "ep12in", "ep13out", "ep14in", "ep15out", }; #define DUMMY_ENDPOINTS ARRAY_SIZE(ep_name) -- 2.39.5