Beaglebone Black console getting hung.

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Hi All,

I am trying to enable and use UART2 on Beaglebone black board.

I have enabled it successfully, and connected USB to serial cable to UART2 pins, and I sent some characters to UART2 and I could see those characters on picocom -b 115200 /dev/ttyUSB1 console.
But the problem is when I type some characters on the picocom -b 115200 /dev/ttyUSB1 console, picocom -b 115200 /dev/ttyUSB0 console is getting hung. I enabled interrupts to detect the characters on picocom -b 115200 /dev/ttyUSB1

Can some one help me to resolve this issue.

Below is the code snipet for interrupt enable.

This code snippet is written inside probe funciton.

fdev->irq = platform_get_irq(pdev,0);

printk ( “irq number for uart2 = %d\n”, fdev->irq);
reg_write(fdev,UART_IER_RDI,UART_IER);

ret = devm_request_irq(&pdev->dev,fdev->irq,uart_handler,IRQF_SHARED,“serial”,fdev);

if(ret) {
printk (“Couldnot request irq\n”);
}

static irqreturn_t uart_handler(int irq, void *dev) {

printk(“IRQ is handled\n”);

return IRQ_HANDLED;
}

Regards,
Madhu