From: news@druck.org.uk   
      
   On 20/09/2024 11:17, John Aldridge wrote:   
   [Reading ds18b20 sensors in parallel]   
   > No, but AIUI the "right" way to do this is to send the text "trigger" to   
   > /sys/bus/w1/devices/w1_bus_master1/therm_bulk_read before reading the   
   > values as normal. The trigger causes them all to start a conversion at   
   > once, following which the reads all complete immediately once a single   
   > conversion time has elapsed.   
   >   
   > As a quick hack, try executing the following before reading your   
   > sensors...   
   >   
   > sudo su < echo trigger > /sys/bus/w1/devices/w1_bus_master1/therm_bulk_read   
   > EOF   
      
   Thanks, that seems to works for the first bus, but I get a permission   
   denied when using w1_bus_master2.   
      
   ---druck   
      
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