[riot-notifications] [RIOT-OS/RIOT] periph/i2c: return values of i2c_aquire and i2c_release (#10673)

MrKevinWeiss notifications at github.com
Thu Jan 24 13:22:00 CET 2019


I think I like removing the return value so `void acquire(i2c_t dev)` and `void release(i2c_t dev)` and adding asserts along with an optional `static inline int i2c_is_dev_valid(i2c_t dev) return (dev < I2C_NUMOF);`

It can be the smallest footprint and allows for the most versatility.

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