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axehelper: add i2c_scan

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This commit is contained in:
Jaroslav Kysela
2015-04-16 15:23:59 +02:00
parent cbdf3ac33b
commit e9b0aad3a3
2 changed files with 64 additions and 0 deletions
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7
debug/hardware.txt
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@@ -29,3 +29,10 @@ I2C address map:
0xd1 - STV0900 #1 - read
0xd2 - STV0900 #2 - write
0xd3 - STV0900 #3 - read
I2C access
==========
All chips are on the first I2C bus accessible through /dev/i2c-0. You may
look to tools/axehelper.c - i2c_scan routine. Note that linux i2c address is
without the read/write bit (so (0xd0 >> 1) = 0x68).