437177b028
128 byte reads are much more common than 32 byte reads. The message passing + setup/teardown for a read is much more expensive, in terms of time, than the reading itself. A slightly bigger struct is well worth the time savings. This reduces read times for /dev/eeprom from 57 seconds per 4KB to 14 seconds. Additionally, make sending the page address in the eeprom driver and utility optional. This can save a little time when reading within the same page and allows support for smaller devices that don't support pages (example: chips containing EDID). Change-Id: Ie48087caee40c11fa241d1555fce9309ddd27b43 |
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cat24c256.c | ||
Makefile | ||
README.txt |
CAT24C256 Driver (EEPROM) ========================= Overview -------- This is the driver for the EEPROM chip commonly found on the BeagleBone and the BeagleBone Black as well as capes and expansion boards. Testing the Code ---------------- Starting up an instance: /bin/service up /usr/sbin/cat24c256 -dev /dev/eepromb1s50 -label cat24c256.1.50 -args 'bus=1 address=0x50'