Minimum mtu depends on transport layer and is larger for BREDR link.
---
android/gatt.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/android/gatt.c b/android/gatt.c
index b9b3c7b..95ddba0 100644
--- a/android/gatt.c
+++ b/android/gatt.c
@@ -1439,7 +1439,7 @@ static void connect_cb(GIOChannel *io, GError *gerr, gpointer user_data)
uint32_t status;
GAttrib *attrib;
uint16_t mtu;
- uint16_t cid;
+ uint8_t dst_type;
if (dev->state != DEVICE_CONNECT_READY) {
error("gatt: Device not in a connecting state!?");
@@ -1459,9 +1459,11 @@ static void connect_cb(GIOChannel *io, GError *gerr, gpointer user_data)
goto reply;
}
- if (!bt_io_get(io, &gerr, BT_IO_OPT_IMTU, &mtu, BT_IO_OPT_CID, &cid,
- BT_IO_OPT_INVALID) || cid == ATT_CID)
- mtu = ATT_DEFAULT_LE_MTU;
+ mtu = ATT_DEFAULT_LE_MTU;
+
+ if (bt_io_get(io, &gerr, BT_IO_OPT_DEST_TYPE, &dst_type,
+ BT_IO_OPT_INVALID) && (dst_type == BDADDR_BREDR))
+ mtu = ATT_DEFAULT_L2CAP_MTU;
attrib = g_attrib_new(io, mtu);
if (!attrib) {
--
1.9.1
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