Add USB to SPI dev -- MCP2210

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
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1

I’d like to add a “USB to SPI” IC “MCP2210” to extend my SPI ports in hardware,
And some others ICs’ deiver will controlled via MCP2210,
for example:
I’ll access a SPI eeprom through MCP2210 in eeprom’s driver.

Does anybody have experience on this?
Or Is there any example?

Thanks.

2

May I know which HW platform you’re using?

3

I’m using AGX Xavier

4

Jetson AGX Xavier?

Which JetPack SW version?

5

I’m using the L4T 32.7.1

6

Your topic was posted in the wrong category. I am moving this to the Jetson AGX Xavier category for visibility.

8

Thanks

9

You can use jetson-io to configure pins for SPI.
Ohers like driver device tree for MCP2210 may need figure it out by yourself.

10

Hi ShaneCCC:
First, thanks for your reply.

but jetson-io is for the physical ports that AGX Xavier has.
am i right?

The MCP2210 bridge is attached to a USB port and acts as an HID device,
I have no idea how to add a node for this.

11

Yes, jetson-io only configure the Xavier SPI.
Then, I would suggest to consult with vendor if any driver can provide or able enable it by kernel configure.

12

OK, Thanks

14

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