Hi,
I am also having troubles with the uftdi driver on 8.0-BETA4.
I am trying to use a fan controller (mCubed bigNG) that uses a FT232BL chip and
it does not seem to be responding on FreeBSD 8.0 while the same code works
perfectly on Linux (I have not tried the code on RELENG_7 yet but I could
install it if necessary).
Here is the very simple code I am using for testing:
#include <termios.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <stdio.h>
int main();
#define DEV "/dev/ttyU0"
#define TBAN_SER_SOURCE1 0x05 /* Primary source */
#define TBAN_SER_SOURCE2 0x06 /* Alternative source (miniNG...) */
#define TBAN_SER_REQUEST 0x36
int main()
{
int fd;
int result;
struct termios oldtio, newtio;
unsigned char buf[285];
printf("Opening device\n");
fd=open(DEV, O_RDWR | O_NOCTTY);
if(fd<0) {
perror(DEV);
return 1;
}
result=tcgetattr(fd,&oldtio);
if(result<0) {
perror("tcgetattr");
return 1;
}
memcpy(&newtio,&oldtio,sizeof(struct termios));
newtio.c_cflag = B19200
| CRTSCTS
| CS8
| CREAD;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0;
newtio.c_cc[VMIN] = 1;
newtio.c_cc[VTIME] = 0;
result=tcflush(fd, TCIFLUSH);
if(result<0) {
perror("tcflush");
return 1;
}
result=tcsetattr(fd,TCSANOW,&newtio);
if(result<0) {
perror("tcsetattr");
return 1;
}
sleep(1);
printf("Performing initial query\n");
buf[0]=TBAN_SER_SOURCE1;
buf[1]=TBAN_SER_REQUEST;
printf("Requesting status\n");
result=write(fd,buf,2);
if(result<0) {
perror("write");
return 1;
}
sleep(1);
printf("Reading status\n");
result=read(fd,buf,32);
if(result<0) {
perror("read");
return 1;
}
result=tcsetattr(fd,TCSANOW,&oldtio);
if(result<0) {
perror("tcsetattr");
return 1;
}
result=close(fd);
if(result<0) {
perror("close");
return 1;
}
return 0;
}
It hangs while reading independently of the number of bits I am reading.
Here is the output from dmesg when I load the uftdi module:
Sep 20 21:31:31 ldaemon kernel: uftdi0: <USB - Serial> on usbus6
Sep 20 21:31:31 ldaemon kernel: ucom_attach_tty:317: tp = 0xffffff001f12b400,
unit = 0
Sep 20 21:31:31 ldaemon kernel: ucom_attach_tty:346: ttycreate: U0
Sep 20 21:31:34 ldaemon root: Unknown USB device: vendor 0x051d product 0x0002
bus uhub0
Here is the output in /var/log/messages when I enable the debug output for ucom
and uftdi:
Sep 20 21:33:30 ldaemon kernel: ucom_open:554: tp = 0xffffff001f12b400
Sep 20 21:33:30 ldaemon kernel: ucom_dtr:827: onoff = 1
Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x01, off=0x00
Sep 20 21:33:30 ldaemon kernel: ucom_rts:838: onoff = 1
Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x02, off=0x00
Sep 20 21:33:30 ldaemon kernel: ucom_break:816: onoff = 0
Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x00, off=0x04
Sep 20 21:33:30 ldaemon kernel: ucom_status_change:901:
Sep 20 21:33:30 ldaemon kernel: ucom_param:950: sc = 0xffffff001f12ac58
Sep 20 21:33:30 ldaemon kernel: uftdi_pre_param:653:
Sep 20 21:33:30 ldaemon kernel: ucom_dtr:827: onoff = 1
Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x01, off=0x00
Sep 20 21:33:30 ldaemon kernel: ucom_rts:838: onoff = 1
Sep 20 21:33:30 ldaemon kernel: ucom_line_state:799: on=0x02, off=0x00
Sep 20 21:33:30 ldaemon kernel: ucom_cfg_open:520:
Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_open:354:
Sep 20 21:33:30 ldaemon kernel: uftdi_read_callback:459: status change msr=0xf0
(0x00) lsr=0x60 (0x00)
Sep 20 21:33:30 ldaemon kernel: ucom_status_change:901:
Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_get_status:705: msr=0xf0 lsr=0x60
Sep 20 21:33:30 ldaemon kernel: ucom_cfg_status_change:887: DCD changed to 1
Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_param:672:
Sep 20 21:33:30 ldaemon kernel: ucom_ioctl:653: cmd = 0x402c7413
Sep 20 21:33:30 ldaemon kernel: ucom_ioctl:653: cmd = 0x80047410
Sep 20 21:33:30 ldaemon kernel: ucom_ioctl:653: cmd = 0x802c7414
Sep 20 21:33:30 ldaemon kernel: ucom_param:950: sc = 0xffffff001f12ac58
Sep 20 21:33:30 ldaemon kernel: uftdi_pre_param:653:
Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_get_status:705: msr=0xf0 lsr=0x60
Sep 20 21:33:30 ldaemon kernel: uftdi_cfg_param:672:
Sep 20 21:33:30 ldaemon kernel: ucom_get_data:1064: cnt=0
Sep 20 21:33:31 ldaemon kernel: ucom_ioctl:653: cmd = 0x80047410
Sep 20 21:33:32 ldaemon kernel: ucom_outwakeup:1009: sc = 0xffffff001f12ac58
Sep 20 21:33:32 ldaemon kernel: ucom_get_data:1064: cnt=2
Sep 20 21:33:32 ldaemon kernel: ucom_get_data:1064: cnt=0
I really need to get this working so I am ready to test things as much as I
can...
Thanks a lot!
Pierre-Luc Drouin
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