Citeren Charles Lepple <[email protected]>:
The get_belkin_reply() function looks fragile to me. Three seconds should be
enough to fill the buffer, but if you put a few upsdebugx() calls
around ser_get_buf_len(), it should be evident whether the read is
timing out, or if there is a problem with the format of the response.
Starting with
ser_flush_io(upsfd);
in the send_belkin_command function (before the ser_send call) might
also help. It doesn't look like the driver deals with partial replies
gracefully.
Best regards, Arjen
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