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espressif / esp-zigbee-sdk

Espressif Zigbee SDK
Apache License 2.0
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Can Coordinator send esp_zb_zdo_active_ep_req() and esp_zb_zdo_simple_desc_req() to multiple end device at the same time (TZ-1289) #479

Closed vanbuong closed 2 weeks ago

vanbuong commented 2 weeks ago

Question

Hello, I'm implementing the ZigBee gateway, which will discover all the information about the newly joined device. These two functions will be used for that purpose esp_zb_zdo_active_ep_req() esp_zb_zdo_simple_desc_req() However, I saw that the callback function to handle the response does not input the device network address. As I understand, seems I can put the req_param in the req function and use that for checking the device address in the response callback later.

But I'm curious to know if it works correctly when many requests are sent for different devices before receiving a response. Or I have to wait the response to be received before sending the next request?

Additional context.

No response

xieqinan commented 2 weeks ago

Hi,

I saw that the callback function to handle the response does not input the device network address.

You could use the user_ctx parameter in esp_zb_zdo_active_ep_req() and esp_zb_zdo_simple_desc_req() to associate each request with the device's network address, allowing multiple responses to be recognized.

lpy4105 commented 2 weeks ago

But I'm curious to know if it works correctly when many requests are sent for different devices before receiving a response. Or I have to wait the response to be received before sending the next request?

No worry. The callbacks and their user_ctx are identified by the TSN of the request, so you can do a second request without waiting for the first one to be responded.

vanbuong commented 2 weeks ago

Thank @lpy4105 @xieqinan for clarification