| config BR2_PACKAGE_BCM2835 | |
| bool "bcm2835" | |
| depends on BR2_arm | |
| help | |
| C library for Broadcom BCM 2835 as used in Raspberry Pi. | |
| It provides access to GPIO and other IO functions on the | |
| Broadcom BCM 2835 chip, allowing access to the GPIO pins | |
| on the 26 pin IDE plug on the RPi board so you can control | |
| and interface with various external devices. | |
| WARNING: the opinion of the Buildroot developers is that | |
| such library is a complete abomination as it entirely works | |
| around the standard Linux interfaces to access GPIOs, I2C, | |
| SPI busses or other IOs. The library directly remaps the | |
| hardware registers in user-space, completely bypassing what | |
| the kernel drivers are doing, and potentially conflicting | |
| with them. | |
| http://www.airspayce.com/mikem/bcm2835 |