FreeCalypso > hg > fc-usbser-tools
diff libftmini/eeprom_wr.c @ 18:fce3d4baa2b4
libftmini: implement EEPROM write
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 07 Sep 2023 22:43:53 +0000 |
parents | libftmini/eeprom_rd.c@67ecb394b24f |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libftmini/eeprom_wr.c Thu Sep 07 22:43:53 2023 +0000 @@ -0,0 +1,24 @@ +/* elementary FTDI EEPROM write function */ + +#include <sys/types.h> +#include <stdio.h> +#include <stdlib.h> +#include <usb.h> +#include "ftdi_defs.h" +#include "ftdi_tune.h" +#include "eeprom_func.h" + +void ftmini_write_eeprom_loc(usb_dev_handle *usbh, u_short addr, u_short val) +{ + int rc; + + rc = usb_control_msg(usbh, FTDI_DEVICE_OUT_REQTYPE, + SIO_WRITE_EEPROM_REQUEST, val, addr, NULL, 0, + USB_WRITE_TIMEOUT); + if (rc != 0) { + fprintf(stderr, + "EEPROM write error: usb_control_msg() returned %d\n", + rc); + exit(1); + } +}