TABLES
I2CBusMetadata
Defined in fuchsia.hardware.i2c.businfo/businfo.fidl
Passed to the i2c driver in metadata as DEVICE_METADATA_I2C_CHANNELS.
| Ordinal | Field | Type | Description |
|---|---|---|---|
1 |
channels |
vector<I2CChannel>[128]
|
|
2 |
bus_id |
uint32
|
ID of the bus that these devices are on. Set as a bind property on the devices added by the I2C core driver. |
I2CChannel
Defined in fuchsia.hardware.i2c.businfo/businfo.fidl
Used to inform the i2c driver about an attached i2c device.
| Ordinal | Field | Type | Description |
|---|---|---|---|
1 |
address |
uint16
|
Address of the device. |
2 |
i2c_class |
uint32
|
Class of the device. TODO(https://fxbug.dev/42158297): remove this once x86 uses ACPI properly. |
3 |
vid |
uint32
|
Vendor ID. Used when binding via platform bus device IDs. |
4 |
pid |
uint32
|
Product ID. Used when binding via platform bus device IDs. |
5 |
did |
uint32
|
Device ID. Used when binding via platform bus device IDs. |
6 |
is_bus_controller |
bool
|
Are we in charge of the bus? |
7 |
is_ten_bit |
bool
|
Is this device using 10-bit addressing mode (if false, use 7-bit). |
8 |
bus_speed |
uint32
|
Speed of the bus. |
9 |
name |
string[64]
|
Friendly name for this bus. Will default to the empty string if not specified. |
CONSTANTS
| Name | Value | Type | Description |
|---|---|---|---|
| MAX_I2C_CHANNEL |
128
|
uint32 |