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-rw-r--r--tools/rootcanal/model/controller/controller_properties.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/rootcanal/model/controller/controller_properties.h b/tools/rootcanal/model/controller/controller_properties.h
index ed69b5a499..70664419b4 100644
--- a/tools/rootcanal/model/controller/controller_properties.h
+++ b/tools/rootcanal/model/controller/controller_properties.h
@@ -112,7 +112,9 @@ public:
uint64_t le_features{0};
// Buffer Size (Vol 4, Part E ยง 7.4.5).
- uint16_t acl_data_packet_length{1024};
+ // Note: The blueZ HCI user socket limits the ACL Data Packet length to 1023
+ // bytes (see HCI_MAX_FRAME_SIZE).
+ uint16_t acl_data_packet_length{1023};
uint8_t sco_data_packet_length{255};
uint16_t total_num_acl_data_packets{10};
uint16_t total_num_sco_data_packets{10};