# FreeBSD I2C wrapper for Python
The ```pyfbsdi2c-tspspi``` project contains a very thin wrapper for the ```ioctl``` requests for the ```iic``` device on FreeBSD
to test various hardware devices from Python. It allows direct access to the I2C bus on devices like the RaspberryPi when running
under FreeBSD.
## Installation
```
pip install pyfbsdi2c-tspspi
```
## Usage
The bus can be instantiated using context management of it's constructor. One can select the bus via it's first constructor
argument:
```
from fbsdi2c import FbsdI2C
```
To instantiate via context management one can use:
```
with FbsdI2C() as i2c:
# Use i2c.
```
To instantiate using the constructor:
```
i2c = FbsdI2C()
# Use i2c.
```
To use multiple busses:
```
i2c0 = FbsdI2C("/dev/iic0")
i2c1 = FbsdI2C("/dev/iic1")
```
## Supported methods
This module exposes the ```pylabdevs``` ```I2CBus``` interface:
### Scanning for bus devices
To print a list with all device addresses that respond:
```
with FbsdI2C() as i2c:
print(i2c.scan())
```
### Reading and writing from a buffer
```
with FbsdI2C() as i2c:
i2c.write(0x33, bytearray(1,2,3))
data = i2c.read(0x33, 5)
```
Raw data
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