add library support for EEPROM access and tool for modification

rtl_eeprom can be used to modify the USB descriptor
strings etc.

Signed-off-by: Steve Markgraf <steve@steve-m.de>

1 files changed, 32 insertions, 0 deletions

diff --git a/include/rtl-sdr.h b/include/rtl-sdr.h
index 157d2a5..6dca0d0 100644
--- a/include/rtl-sdr.h
+++ b/include/rtl-sdr.h
@@ -99,6 +99,38 @@ RTLSDR_API int rtlsdr_get_xtal_freq(rtlsdr_dev_t *dev, uint32_t *rtl_freq,
 RTLSDR_API int rtlsdr_get_usb_strings(rtlsdr_dev_t *dev, char *manufact,
 				      char *product, char *serial);
 
+/*!
+ * Write the device EEPROM
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param data buffer of data to be written
+ * \param offset address where the data should be written
+ * \param len length of the data
+ * \return 0 on success
+ * \return -1 if device handle is invalid
+ * \return -2 if EEPROM size is exceeded
+ * \return -3 if no EEPROM was found
+ */
+
+RTLSDR_API int rtlsdr_write_eeprom(rtlsdr_dev_t *dev, uint8_t *data,
+				  uint8_t offset, uint16_t len);
+
+/*!
+ * Read the device EEPROM
+ *
+ * \param dev the device handle given by rtlsdr_open()
+ * \param data buffer where the data should be written
+ * \param offset address where the data should be read from
+ * \param len length of the data
+ * \return 0 on success
+ * \return -1 if device handle is invalid
+ * \return -2 if EEPROM size is exceeded
+ * \return -3 if no EEPROM was found
+ */
+
+RTLSDR_API int rtlsdr_read_eeprom(rtlsdr_dev_t *dev, uint8_t *data,
+				  uint8_t offset, uint16_t len);
+
 RTLSDR_API int rtlsdr_set_center_freq(rtlsdr_dev_t *dev, uint32_t freq);
 
 /*!