Openwrt I2c Support

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OpenWrt Project: How to use I²C over USB

    https://openwrt.org/docs/guide-user/hardware/usb.i2c-tiny-usb
    One of those adapters is called i2c-tiny-usb, developed by Till Harbaum. Biggest advantage is the low price (though not as cheap as the GPIO mod) and the support in the Linux kernel (thus making it possible to connect it to your computer running a recent Linux distribution and test it).

OpenWrt Project: I2C

    https://openwrt.org/docs/techref/hardware/port.i2c
    There are a few other OpenWrt I2C projects out there and they really helped me getting this up and running. In contrast to the other projects this one uses 2 GPIOs of the router. does not need any external circuit. Hardware. I2C is bi-directional and needs pull-up resistors on both lines (10k is recommended). Most devices operate at 3.3V but ...

OpenWrt Project: Supported devices

    https://openwrt.org/supported_devices
    See OpenWrt on 4/32 devices what you can do now. 2) OpenWrt support for 4/32 devices will end after 2019. After 19.07, no further OpenWrt images will be built for 4/32 devices. See OpenWrt on 4/32 devices what you can do now.

Adding RTC to OpenWrt devices (part 2)

    http://kernelreloaded.com/adding-rtc-to-openwrt-devices-part-2/
    Jan 08, 2018 · Some time ago I wrote how to add Real Time Clock (RTC) support to OpenWrt. Currently support for RTC chip DS1370 is still not 100% there in OpenWrt because there is a bug that causes OpenWrt builder to just skip over compiling RTC kernel modules. Tools are there, driver is there, but you have to compile them manually.

Temperature Sensing on the BR-6104K - SourceForge

    http://linux-adm5120.sourceforge.net/openwrt/i2c/
    Recent changes in OpenWrt have seen the introduction of better support for i2c. It's no longer necessary to resort to custom kernel modules and custom userland programs to get up to 4 i2c busses on your BR-6104K(P) and use them in your projects.

openwrt/i2c.mk at master · respeaker/openwrt · GitHub

    https://github.com/respeaker/openwrt/blob/master/package/kernel/linux/modules/i2c.mk
    Linux distribution for embedded devices. Contribute to respeaker/openwrt development by creating an account on GitHub.

OpenWrt Project: package: kmod-i2c-core

    https://openwrt.org/packages/pkgdata/kmod-i2c-core
    kmod-i2c-core Version: see kernel for details Description: Kernel modules for I2C support\\ \\ Installed size: 4kB Dependencies: kernel Categories: kernel-modules Repositories: base OpenWrt release: OpenWrt-18.06.0 File size: 4kB License: GPLv2 Maintainer: OpenWrt team Bug report: Bug reports Source code: Sources

OpenWrt Project: USB Video Support

    https://openwrt.org/docs/guide-user/hardware/video/usb.video
    a video camera.This page is all about OpenWrt support for web cams and similar devices (i.e. something with a video stream, e.g. a TV card)!

kernel: I2C better driver for MT7621/MT7628 by j123b567 ...

    https://github.com/openwrt/openwrt/pull/831
    I2C on MT7621/MT7628/MT7688 has two modes: "auto" and "manual". Old driver uses "auto" mode which does not support propper ACK/NAK handling, clock stratching, repeated start and was limited to 32 bytes per message. This driver is using "manual" mode so it can support all these features.



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