This patch adds the "register-notify" command, which registers a
notification/indication handler for a given characteristic value handle.
---
tools/btgatt-client.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/tools/btgatt-client.c b/tools/btgatt-client.c
index 8bde1ee..a51c7c0 100644
--- a/tools/btgatt-client.c
+++ b/tools/btgatt-client.c
@@ -702,6 +702,74 @@ static void cmd_write_long_value(struct client *cli, char *cmd_str)
free(value);
}
+static void register_notify_usage(void)
+{
+ printf("Usage: register-notify <chrc value handle>\n");
+}
+
+static void notify_cb(uint16_t value_handle, const uint8_t *value,
+ uint16_t length, void *user_data)
+{
+ int i;
+
+ printf("\n\tHandle Value Not/Ind: 0x%04x - ", value_handle);
+
+ if (length == 0) {
+ PRLOG("(0 bytes)\n");
+ return;
+ }
+
+ printf("(%u bytes): ", length);
+
+ for (i = 0; i < length; i++)
+ printf("%02x ", value[i]);
+
+ PRLOG("\n");
+}
+
+static void register_notify_cb(unsigned int id, uint16_t att_ecode,
+ void *user_data)
+{
+ if (!id) {
+ PRLOG("Failed to register notify handler "
+ "- error code: 0x%02x\n", att_ecode);
+ return;
+ }
+
+ PRLOG("Registered notify handler with id: %u\n", id);
+}
+
+static void cmd_register_notify(struct client *cli, char *cmd_str)
+{
+ char *argv[2];
+ int argc = 0;
+ uint16_t value_handle;
+ char *endptr = NULL;
+
+ if (!bt_gatt_client_is_ready(cli->gatt)) {
+ printf("GATT client not initialized\n");
+ return;
+ }
+
+ if (!parse_args(cmd_str, 1, argv, &argc) || argc != 1) {
+ register_notify_usage();
+ return;
+ }
+
+ value_handle = strtol(argv[0], &endptr, 16);
+ if (!endptr || *endptr != '\0' || !value_handle) {
+ printf("Invalid value handle: %s\n", argv[0]);
+ return;
+ }
+
+ if (!bt_gatt_client_register_notify(cli->gatt, value_handle,
+ register_notify_cb,
+ notify_cb, NULL, NULL))
+ printf("Failed to register notify handler\n");
+
+ printf("\n");
+}
+
static void cmd_help(struct client *cli, char *cmd_str);
typedef void (*command_func_t)(struct client *cli, char *cmd_str);
@@ -721,6 +789,8 @@ static struct {
"\tWrite a characteristic or descriptor value" },
{ "write-long-value", cmd_write_long_value,
"Write long characteristic or descriptor value" },
+ { "register-notify", cmd_register_notify,
+ "\tSubscribe to not/ind from a characteristic" },
{ }
};
--
2.1.0.rc2.206.gedb03e5
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