Re: [PATCH BlueZ] hog-lib: Fix HoG discovering characteristics order

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Hi Luiz,

On 13/12/2023 18:27, Luiz Augusto von Dentz wrote:
Hi Frédéric,

On Wed, Dec 13, 2023 at 3:50 AM Frédéric Danis
<frederic.danis@xxxxxxxxxxxxx> wrote:
PTS test HOGP/RH/HGRF/BV-01-I fails as inconclusive after waiting for
second report map read request with message 'Please send ReadRequest to
read Report Map characteristic with handle = 0x00E7'.
Handle which has already been read, as it can be seen in btmon traces.

This commit change the recursion order to read instance characteristics
before recurring to next instances.

Closes: https://github.com/bluez/bluez/issues/657
---
  profiles/input/hog-lib.c | 12 ++++++------
  1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/profiles/input/hog-lib.c b/profiles/input/hog-lib.c
index 7ff1ede3d..db62a3c9f 100644
--- a/profiles/input/hog-lib.c
+++ b/profiles/input/hog-lib.c
@@ -1780,12 +1780,6 @@ bool bt_hog_attach(struct bt_hog *hog, void *gatt)

         queue_foreach(hog->bas, (void *) bt_bas_attach, gatt);

-       for (l = hog->instances; l; l = l->next) {
-               struct bt_hog *instance = l->data;
-
-               bt_hog_attach(instance, gatt);
-       }
-
         if (!hog->uhid_created) {
                 DBG("HoG discovering characteristics");
                 if (hog->attr)
@@ -1798,6 +1792,12 @@ bool bt_hog_attach(struct bt_hog *hog, void *gatt)
                                         char_discovered_cb, hog);
         }

+       for (l = hog->instances; l; l = l->next) {
+               struct bt_hog *instance = l->data;
+
+               bt_hog_attach(instance, gatt);
+       }
+
         if (!hog->uhid_created)
                 return true;
While I don't oppose this change, but this seems to be a limitation on
the PTS side which expects a certain order of the operation which
doesn't seem to be a requirement coming from the spec, so perhaps we
should file an issue to PTS.

Yes, I opened an issue to PTS.
Let's see what they will reply.

Regards,

Fred

--

Frédéric Danis
Senior Software Engineer

Collabora Ltd.
Platinum Building, St John's Innovation Park, Cambridge CB4 0DS, United Kingdom
Registered in England & Wales, no. 5513718





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