diff options
| -rw-r--r-- | flashrom.8 | 9 | ||||
| -rw-r--r-- | ft2232_spi.c | 4 |
2 files changed, 12 insertions, 1 deletions
@@ -573,6 +573,15 @@ The default model is and the default interface is .BR B . .sp +If there is more than one ft2232_spi-compatible device connected, you can select which one should be used by +specifying its serial number with the +.sp +.B " flashrom \-p ft2232_spi:serial=number" +.sp +syntax where +.B number +is the serial number of the device (which can be found for example in the output of lsusb -v). +.sp All models supported by the ft2232_spi driver can configure the SPI clock rate by setting a divisor. The expressible divisors are all even numbers between 2 and 2^17 (=131072) resulting in SPI clock frequencies of 6 MHz down to about 92 Hz for 12 MHz inputs. The default divisor is set to 2, but you can use another one by diff --git a/ft2232_spi.c b/ft2232_spi.c index edea1e66..1b806745 100644 --- a/ft2232_spi.c +++ b/ft2232_spi.c @@ -283,7 +283,9 @@ int ft2232_spi_init(void) msg_perr("Unable to select interface: %s\n", ftdic->error_str); } - f = ftdi_usb_open(ftdic, ft2232_vid, ft2232_type); + arg = extract_programmer_param("serial"); + f = ftdi_usb_open_desc(ftdic, ft2232_vid, ft2232_type, NULL, arg); + free(arg); if (f < 0 && f != -5) { msg_perr("Unable to open FTDI device: %d (%s)\n", f, |