Raspberry 4B uart interrupt issue

[TopgunZh]

Hi,i have a problem as testing this driver. The uart driver canot into the interrupt.

• 1.first.I follow the step in your README file.

my pi info: /boot/config.txt make sure to have these options:

• 2.make and insmod the ttybus driver.

• 3. now i begin test uart data send. my test code:

but i just get one character：

• 4.so i try to figure out the problem. I open the irq debug and make again,then send the uart data again I find the uart driver canot into the interrupt.

Can you help to fix this problem?

[TopgunZh]

Now it work well. Thanks With the ttyebus driver uninstalled I ran: dmesg | grep tty This reports: [ 1.194315] fe201000.serial: ttyAMA0 at MMIO 0xfe201000 (irq = 29, base_baud = 0) is a PL011 rev2

So the ttyAMA0 is connected to IRQ 29. I edited the ttyebusm.c file (V1.8) and changed the IRQ on line 192 from 34 to 29. Then rebuild and install the ttyebus driver.