* test setting the baudrate and compare it with the expected runtime
*
* options:
- * -p <usb-product-id> (vendor is fixed to ftdi / 0x0403)
+ * -p <devicestring> defaults to "i:0x0403:0x6001" (this is the first FT232R with default id)
+ * d:<devicenode> path of bus and device-node (e.g. "003/001") within usb device tree (usually at /proc/bus/usb/)
+ * i:<vendor>:<product> first device with given vendor and product id,
+ * ids can be decimal, octal (preceded by "0") or hex (preceded by "0x")
+ * i:<vendor>:<product>:<index> as above with index being the number of the device (starting with 0)
+ * if there are more than one
+ * s:<vendor>:<product>:<serial> first device with given vendor id, product id and serial string
* -d <datasize to send in bytes>
* -b <baudrate> (divides by 16 if bitbang as taken from the ftdi datasheets)
* -m <mode to use> r: serial a: async bitbang s:sync bitbang
#include <sys/time.h>
#include <stdio.h>
+#include <stdlib.h>
#include <unistd.h>
#include <ftdi.h>
int baud=9600;
int set_baud;
int datasize=100000;
- int product_id=0x6001;
+
+ char default_devicedesc[] = "i:0x0403:0x6001";
+ char *devicedesc=default_devicedesc;
int txchunksize=256;
enum ftdi_mpsse_mode test_mode=BITMODE_BITBANG;
baud = atoi (optarg);
break;
case 'p':
- sscanf(optarg,"0x%x",&product_id);
+ devicedesc=optarg;
break;
case 'c':
txchunksize = atoi (optarg);
return EXIT_FAILURE;
}
- if (ftdi_usb_open(&ftdic, 0x0403, product_id) < 0)
+ if (ftdi_usb_open_string(&ftdic, devicedesc) < 0)
{
fprintf(stderr,"Can't open ftdi device: %s\n",ftdi_get_error_string(&ftdic));
return EXIT_FAILURE;
start=get_prec_time();
+ // don't wait for more data to arrive, take what we get and keep on sending
+ // yes, we really would like to have libusb 1.0+ with async read/write...
+ ftdic.usb_read_timeout=1;
+
i=0;
while(i < datasize)
{