On Sat, Oct 06, 2012 at 06:33:19PM +0000, Reddy Kaveri, Praveen Kumar wrote: > Hi, > > I am using Telxon PTC-710 device in linux environment and I am using > RS232 Serial to USB converter. When I connect the device to USB port > it is detecting and showing in the system log as "attached to > ttyUSB0". I have written a java program to display all the available > ports. But this program is displaying only ttyS0 &ttyS1. I have tried > to set all permissions to the user as well as to port. Please help me > if I am missing any configuration related to this driver. You are going to have to modify your userspace program to know to look for the ttyUSBX devices as well. There's nothing the kernel can do about this. As you wrote the program, how are you getting the list of serial devices in the system? greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html