SEEPROM(4) | Device Drivers Manual | SEEPROM(4) |
seeprom
—
seeprom0 at iic0 addr 0x51: AT24Cxx or compatible EEPROM: size
256
seeprom16 at iic1 addr 0x57: power-supply: size 8192
seeprom
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 |
seeprom* at iic? addr 0x51 flags
0x2
seeprom* at iic? addr?
seeprom
device appeared in NetBSD
2.0.
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.
October 25, 2013 | NetBSD 9.4 |