Re: [Ftdi-usb-sio-devel] Raspberry Pi FDTI Driver issue

[Brett W. <wh...@ec...>]

Here is the Dmseg information about it. I looks to be the right driver to me. Any other ideas of what it might be? 

[ 3.822917] usbserial: USB Serial support registered for generic 
[ 3.842095] usbcore: registered new interface driver ftdi_sio 
[ 3.849420] usbserial: USB Serial support registered for FTDI USB Serial Device 
[ 3.855792] ftdi_sio 1-1.2:1.0: FTDI USB Serial Device converter detected 
[ 3.862030] usb 1-1.2: Detected FT232RL 
[ 3.868149] usb 1-1.2: FTDI USB Serial Device converter now attached to ttyUSB0 
[ 5.496995] random: nonblocking pool is initialized 

Kind Regards, 

Brett Whittacre 
Vice President 
wh...@ec... 
ec 2 Software Solutions 
3035 E. Patrick 
Ste. 1 
Las Vegas, Nevada, 89120 
P : 1.866.791.3673 ext 200 | F: 1.702.947.7357 
www.ec2software.com 
Follow the rules. Exceed the standard . 

----- On Apr 8, 2015, at 5:08 PM, Bill Ryder <bil...@gm...> wrote: 

> At a guess the Pi isn't loading the right driver.

> Do you have the output from dmesg when the FTDI is plugged in?

> It should say something about a ftdi_sio device being attached.

> On Thu, Apr 9, 2015 at 9:40 AM, Brett Whittacre < wh...@ec... > wrote:

>> I am having a very strange issue with serial communication through a fdti FT232
>> device. I have created a serial program that communicated with a device. It is
>> set to blocking mode. When I run the program on a PC, it works just fine.
>> However, when I run the same program on a Raspberry pi 2, it always returns at
>> least one character, even though there is nothing on the line at that time. The
>> code below works on Ubuntu 14.04 with no issues. I get full blocking using
>> either a read of select call.

>> I am just wondering if I am doing something wrong on the PI....

>> Here is how I am connecting to the port.'

>> fd=open(sDev.c_str(), O_RDWR | O_NOCTTY );

>> struct termios options;

>> tcgetattr(fd, &options);

>> cfsetispeed(&options, B115200);

>> cfsetospeed(&options, B115200);

>> options.c_cflag |= (CLOCAL | CREAD );

>> options.c_cflag &= ~CSTOPB; //Set one stop bit

>> options.c_cflag &= ~CRTSCTS; //

>> options.c_cflag &= ~CSIZE; //Mask the character size bits

>> options.c_cflag |= (ICANON);

>> options.c_cflag &= ~(IXON| IXOFF |IXANY); //No software flow control

>> options.c_cc[VTIME]=0;

>> options.c_cc[VMIN]=1;

>> tcsetattr(fd, TCSANOW, &options);

>> int flags;

>> //clear DTR and RTS

>> flags &= ~(TIOCM_DTR | TIOCM_RTS);

>> ioctl(fd, TIOCMSET, &flags);

>> usleep(200);

>> //SET DTR

>> flags |= TIOCM_DTR;

>> ioctl(fd, TIOCMSET, &flags);

>> usleep(200);

>> //clear DTR

>> flags &= ~(TIOCM_DTR);

>> ioctl(fd, TIOCMSET, &flags);

>> usleep(200);

>> Kind Regards,

>> Brett Whittacre
>> Vice President
>> wh...@ec...
>> ec 2 Software Solutions
>> 3035 E. Patrick
>> Ste. 1
>> Las Vegas, Nevada, 89120
>> P : 1.866.791.3673 ext 200 | F: 1.702.947.7357
>> www.ec2software.com
>> Follow the rules. Exceed the standard .

>> Kind Regards,

>> Brett Whittacre
>> Vice President
>> wh...@ec...
>> ec 2 Software Solutions
>> 3035 E. Patrick
>> Ste. 1
>> Las Vegas, Nevada, 89120
>> P : 1.866.791.3673 ext 200 | F: 1.702.947.7357
>> www.ec2software.com
>> Follow the rules. Exceed the standard .

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