Sign up or log in Sign up using Google. I2C has speed kHz. It’s hard to tell where these 25ms come from exactly without doing profiling on your system. Sign up using Facebook. What do you think about adding this into rpi-linux repository? Context switch surely takes some time, but 25ms looks way too long for that only; maybe a higher priority process -es is running. Thu Jun 30, 5:

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What do you think about adding this into rpi-linux repository? Post as a guest Name. But queued work is performed within 25ms sc16is752 linux interrupt occurs.

sc16is752 linux Linux Kernel sources already has driver for this chip, but only in SPI mode. Thu Jun 30, 4: Here is the final version including your suggestion.

Re: SC16is752 I2c driver

It’s hard sc16is752 linux tell where these 25ms come from exactly without doing profiling on your system. Since there is no ready to use example for my case, I written the dts below.

Yes, spi-max-frequency syntax is incorrect. I have also seen your post in the other thread. sc16is752 linux

Sign up using Email and Password. One function is performed about ms.

sc16is on SPI1 – Raspberry Pi Forums

Thu Jun 30, 5: And here i faced with problem. Andrew Gazizov 11 3. As I final sc16is752 linux, a Priorities won’t solve your problem completely anyway, because there’s always a sc16is752 linux for another unrelated IRQ sc16us752 arise between your IRQ and the process.

Context switch surely takes some time, but 25ms looks way too long for that only; maybe a higher lijux process -es is running. Stack Overflow works best with JavaScript enabled.

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I2C has speed kHz. Sc16is752 linux tried to sc16is752 linux with the priorities and scheldule policies, but it also did not give the desired results. I am using buildroot sc16is752 linux order to build kernel and create filesystem. However, as you can guess, the IC is not working. But after this time, FIFO is overflowed and data lost bytes transmits in 26ms. I hope this sample dts will help other people who would like to use sc16is with a RPi setup.

To this converter’s UART connected device on baud Users browsing this forum: Sign up or log in Sign up using Google. I’ll pursue the investigation in the other thread.

CONFIG_SERIAL_SC16IS7XX: SC16IS7xx serial support

Wed Jun 29, 9: By posting your answer, you agree to the privacy policy and terms of service. Who is online Users browsing this forum: Helping Teams Get Started. Any help sd16is752 appreciated. Their overlay sc16is752 linux correct, but by the end of the thread it still wasn’t sc16is752 linux.