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I am using SerialCom in raspberry pi.
Working of serialcom is OK.
Open port is OK.
Writing port is OK.
Reading port is OK.
I can get data from my sensor, I can send data to my sensor.
But,
When i try to close port,
I get xBussy warning always.
I have if state with start variable.
IF start TRUE THEN
com.open execute is OK ( port is opening )
com.write execute is OK ( i can send data to sensor )
com.read execute is OK ( i can get data from sensor )
ELSE
com.close execute is not OK ( i always get close bussy warning )
Could you please help me.
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hm.. would recommend to close the com port before removing the USB Serial...
and /etc/udev/rules.d/serial-symlinks.rules you need to google for udev to prevent
USB is getting differnt Interface numbers.
BR
Edwin
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Edwin Schwellinger hat geschrieben:
Hi,
hm.. would recommend to close the com port before removing the USB Serial...
and /etc/udev/rules.d/serial-symlinks.rules you need to google for udev to prevent
USB is getting differnt Interface numbers.
BR
Edwin
Dear Edwin,
I am trying to close the com port before removing the USB Serial.
But as i said, i am getting xBusy error.
I have already linked my usb devices.
I dont understand why comport is not close when i say "close" to the port.
you can see my serial links in attached files
What i need to do
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello,
I am using SerialCom in raspberry pi.
Working of serialcom is OK.
Open port is OK.
Writing port is OK.
Reading port is OK.
I can get data from my sensor, I can send data to my sensor.
But,
When i try to close port,
I get xBussy warning always.
I have if state with start variable.
IF start TRUE THEN
com.open execute is OK ( port is opening )
com.write execute is OK ( i can send data to sensor )
com.read execute is OK ( i can get data from sensor )
ELSE
com.close execute is not OK ( i always get close bussy warning )
Could you please help me.
Some one can help me please.
When i unplug USB while raspberry pi is working.
USB port cannot close.
When i plug USB device again, ttyUSB0 can change ttyUSB1.
So, i have to restart raspberry pi.
I need help about it
Hi,
hm.. would recommend to close the com port before removing the USB Serial...
and /etc/udev/rules.d/serial-symlinks.rules you need to google for udev to prevent
USB is getting differnt Interface numbers.
BR
Edwin
Dear Edwin,
I am trying to close the com port before removing the USB Serial.
But as i said, i am getting xBusy error.
I have already linked my usb devices.
I dont understand why comport is not close when i say "close" to the port.
you can see my serial links in attached files
What i need to do
I think no one have idea about it.