linux c program for hardware spi reading from specified location

manishahg · 07-11-2012, 02:20 AM

I am using hardware SPI for PRoslic Si3217 and want to read spi data from the specified location.I am unable to read the data from particular location( ex:- 0x00 location). i tried different search engines, but i didn't get any answer for that. i need program for that READ/WRITE operations using ioctl() function only in linux C.

so please help me to get out from this hurdle.

TB0ne · 07-12-2012, 09:58 AM

Quote:

Originally Posted by manishahg

I am using hardware SPI for PRoslic Si3217 and want to read spi data from the specified location.I am unable to read the data from particular location( ex:- 0x00 location). i tried different search engines, but i didn't get any answer for that. i need program for that READ/WRITE operations using ioctl() function only in linux C.

so please help me to get out from this hurdle.

Really?? Did you try checking out the ProSLIC website, where they have the complete programming API???
http://www.silabs.com/products/voice...Pages/API.aspx

And if you had tried Google, you'd have found code on Google Code, that does what you want:
https://code.google.com/p/rt-n56u/so...b6790a3e19e588

manishahg · 07-16-2012, 11:35 PM

Thanks. But how do I read spi driver id and other register values in linux. Also i want to implement hardware spi read-write for my api.

TB0ne · 07-17-2012, 08:43 AM

Quote:

Originally Posted by manishahg

Thanks. But how do I read spi driver id and other register values in linux. Also i want to implement hardware spi read-write for my api.

You get their API, and read the instructions. The API provides you with the interface you need to query the hardware. Their API is a pay-for product, so you will first purchase the API, then read the instructions that come with it. If you've got questions after that, you contact their tech support, since you're paying for it with your purchase.

manishahg · 07-18-2012, 05:37 AM

Is there any linux c code to read and write device registers and device address. I want to read the address of /dev/devicename and read the content of its register 0. I am using fd = open(device, O_RDWR); to open the device.

manishahg · 07-18-2012, 05:44 AM

I basically want to know if my spi interface is working correctly. So i want to read the Proslic register values through spi to verify the values match with its presets.

TB0ne · 07-18-2012, 09:59 AM

Quote:

Originally Posted by manishahg

I basically want to know if my spi interface is working correctly. So i want to read the Proslic register values through spi to verify the values match with its presets.

Yes, we understand what you're asking. AGAIN, I will point you to the documentation/instructions that come with your purchase of the API, and the access to their tech-support which comes with that purchase. I do not have the API, since it is a pay-for product which I don't need.