Member Avatar for Mr.UNOwen

Hello,

I'm working on a project using the arduino board that connects to my computer via USB. Anyway, I opened the "file" (FYI using linux) for the board using the fopen call and I'm wonder if there's a way to check if there's data ready to read in.

Also I know that the appropriate way to read from a serial port is to use the open() call and setup the baud rate, but is fopen() still good to use? So far I'm able to read in data accurately (when there is data sent).

Edited by Mr.UNOwen because: n/a
  • 3 Contributors
  • 3 Replies
  • 131 Views
  • 23 Hours Discussion Span
  • Latest Post Latest Post by rubberman

Recommended Answers

All 3 Replies

Member Avatar for rubberman

Use the select() call to indicate when there is data ready to be read on a socket/file-descriptor.

Member Avatar for Ancient Dragon

Do you use sockets to read from USB port???

Please see USB Design By Example

Edited by Ancient Dragon because: n/a
Member Avatar for rubberman

If you open a USB port and get a file descriptor, that can be used just like a socket in select() calls.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.