Hi everyone,

I'm working on USBTTY for uboot1.3.1 by adding my usb device code by setting 
the CONFIG_USB_TTY, CONFIG_USB_DEVICE and CFG_CONSOLE_IS_IN_ENV flags. 

Procedure
1)After booting the uboot with usbtty support, it will initialize my usb device 
with usbtty as cdc_acm device.

2)Then I have given the following commands  
        setenv stderr usbtty; saveenv -working fine
        setenv stdin usbtty; setenv stdout usbtty;saveenv. After using this 
command, host windows PC not able to detect         the cable. It stucks in 
console_setfile() function of common/console.c

3)But, if I do only the setenv stdin usbtty. USB Cable is detected as u-boot 
gadget on windows PC. From console_setfile() function of console.c, calling the 
getc() and tstc() functions of USBtty. I'm able to open the tera term with the 
new COM port. But I can't do any operations on this COM port. May be because of 
stdout is not set to usbtty.

Please reply asap.

Thanks for your support,
Naveen
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