issue with uart devpath in tag 2.0.0

[vsivanagulu]

I ma trying to add uart to my custom am335x based board . I have issues with devpath in uart initialization

mraa_result_t mraa_cosmic_uart_init_pre(int index) { char devpath[MAX_SIZE]; snprintf(devpath,MAX_SIZE,"/dev/ttyO%u",index); if (!mraa_file_exist(devpath)) { syslog(LOG_ERR, "uart: Device not initialized"); }else { plat->uart_dev[index].device_path = devpath; return MRAA_SUCCESS; } return MRAA_ERROR_INVALID_PARAMETER; }
In above I have printed devpath values

else {
printf("path=%s",devpath);
plat->uart_dev[index].device_path = devpath;
printf("devpathaftre=%s",plat->uart_dev[index].device_path);
return MRAA_SUCCESS;
}
output:
path=/dev/ttyO1
Failed to initialize UART
devpathafter=/dev/ttyO1

if I add like below then UART is working fine
'plat->uart_dev[index].device_path = "/dev/ttyO1";'

Why devpath is not working even the string is correct. Kindly guide me to resolve the issue. I have taken phyboard-wega reference. same code for wega board is working.

[Propanu]

Maybe check formatting/string termination on your written devpath? Just like you pointed out, this works with a constant literal so I doubt it's a mraa issue.

[alext-mkrs]

@vsivanagulu, please post syslog contents around the time of your program run. The error message you post is not from the code you posted, but from UART example code, right? Posting full code you've changed may be helpful as well, but we can start with syslog.

[alext-mkrs]

@vsivanagulu, is this still actual?

[vsivanagulu]

@alext-mkrs ,i have stoped this currently for some other important work. i will do it soon.