From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
HoG spec has the following statement:
"The Report Host shall enable notifications, via the Client
Characteristic Configuration descriptor, of the Report characteristic
for all instances of the Report characteristic where the Report Type
as defined in the Report Reference characteristic descriptor
refers to an Input Report."
---
android/hog.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/android/hog.c b/android/hog.c
index ad4eee5..83f5d53 100644
--- a/android/hog.c
+++ b/android/hog.c
@@ -102,6 +102,7 @@ struct report {
struct bt_hog *hog;
uint8_t id;
uint8_t type;
+ uint16_t ccc_handle;
guint notifyid;
struct gatt_char *decl;
};
@@ -195,6 +196,10 @@ static void report_reference_cb(guint8 status, const guint8 *pdu,
report->id = pdu[1];
report->type = pdu[2];
DBG("Report ID: 0x%02x Report type: 0x%02x", pdu[1], pdu[2]);
+
+ /* Enable notifications only for Input Reports */
+ if (report->type == 0x01)
+ write_ccc(report->hog->attrib, report->ccc_handle, report);
}
static void external_report_reference_cb(guint8 status, const guint8 *pdu,
@@ -248,7 +253,7 @@ static void discover_report_cb(uint8_t status, GSList *descs, void *user_data)
switch (desc->uuid16) {
case GATT_CLIENT_CHARAC_CFG_UUID:
- write_ccc(hog->attrib, desc->handle, report);
+ report->ccc_handle = desc->handle;
break;
case GATT_REPORT_REFERENCE:
gatt_read_char(hog->attrib, desc->handle,
--
1.9.3
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