1 =====================
2 I2C Ten-bit Addresses
3 =====================
4
5 The I2C protocol knows about two kinds of devi
6 addresses, and an extended set of 10 bit addre
7 do not intersect: the 7 bit address 0x10 is no
8 address 0x10 (though a single device could res
9 To avoid ambiguity, the user sees 10 bit addre
10 address space, namely 0xa000-0xa3ff. The leadi
11 10 bit mode. This is used for creating device
12 needed when instantiating 10 bit devices via t
13
14 I2C messages to and from 10-bit address device
15 See the I2C specification for the details.
16
17 The current 10 bit address support is minimal.
18 you can expect some problems along the way:
19
20 * Not all bus drivers support 10-bit addresses
21 hardware doesn't support them (SMBus doesn't
22 support for example), some don't because nob
23 code (or it's there but not working properly
24 (i2c-algo-bit) is known to work.
25 * Some optional features do not support 10-bit
26 case of automatic detection and instantiatio
27 drivers, for example.
28 * Many user-space packages (for example i2c-to
29 10-bit addresses.
30
31 Note that 10-bit address devices are still pre
32 listed above could stay for a long time, maybe
33 needs them to be fixed.
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