NAME
seeprom —
24-series I2C EEPROM driver
SYNOPSIS
seeprom0 at iic0 addr 0x51: AT24Cxx or compatible
EEPROM: size 256
seeprom16 at iic1 addr 0x57: power-supply: size
8192
DESCRIPTION
Theseeprom driver provides support for the ATMEL
24-series of I2C EEPROMs, and compatibles, available from a variety of
vendors. The Philips PCF8582 is also supported, as compatible with the
AT24C02.
Access to the contents of the memory is through a character device.
The size of the EEPROM is either read from the firmware, or can be set using the flags keyword in the kernel configuration. The value of the flag represents the EEPROM size in Kbit.
| flags | EEPROM size in bytes |
1 |
128 |
2 |
256 |
4 |
512 |
8 |
1024 |
16 |
2048 |
32 |
4096 |
64 |
8192 |
128 |
16384 |
256 |
32768 |
512 |
65536 |
EXAMPLES
Indirect configuration:
seeprom* at iic? addr 0x51 flags
0x2seeprom* at iic? addr?SEE ALSO
HISTORY
The seeprom device appeared in
NetBSD 2.0.
BUGS
AT24C1024 EEPROM's are not supported.
Software write protection on the AT34Cxx EEPROMs is not supported.
The seeprom driver reads and writes one
byte at a time to be compatible with all controllers.