The Industrial Raspberry Pi Forum

Hi,

I'm using the RevPi Connect SE to transfer some files over USB, but I'm facing a problem with the PTP configuration, and it does not allow me to transfer files from specific devices.

Is it possible to change the PTP configuration on the RevPi, such as the BLOBSIZE?

Regards,
Rodrigo

Hello rlc,

I'm using the RevPi Connect SE to transfer some files over USB, but I'm facing a problem with the PTP configuration, and it does not allow me to transfer files from specific devices.
Is it possible to change the PTP configuration on the RevPi, such as the BLOBSIZE?

Unfortunately, I can't help you with this. Try the Raspberry Pi forum. If you find the solution there, feel free to post the link here, in your Revolution Pi Forum post.
Raspberry Pi Forum

Best regards
Giuseppe Pagano

Hi Giuseppe,

I tested my application on a Raspberry Pi 4, and no error appeared. This problem with the PTP is specific to the RevPi.

Regards,
Rodrigo.

Hello Rodrigo,

I tested my application on a Raspberry Pi 4, and no error appeared. This problem with the PTP is specific to the RevPi.

Which image did you use exactly, on the Raspberry Pi 4 and which on the RevPi?

Best regards
Giuseppe Pagano

For the Raspberry Pi 4 I used Debian 11 (Bullseye) and for the RevPi Connect I'm using Stretch Buster.

Hello rlc,

what library do you use in your application and which device do you want to read from?

Or do you want to read from the RevPi?

Best regards
Stefan

Hi stefanh,

I have a Canon R connected via USB, and I'm using the gphoto2 library. Whenever I try to transfer a file from the camera to the RevPi Connect SE, I get an error related to the PTP BLOBSIZE configuration.

Regards,
Rodrigo.

Hi rlc,

have you tested the new image? --> viewtopic.php?t=3961

I have not found a solution yet how to configure Picture Transfer Protocol. But the problem is interesting

Best regards
Stefan

Raspberry Pi 4 uses a dedicated XHCI controller. The RevPi (all but Connect 4) use the integrated host controller. One thing you could try, is to enable the xhci mode of the internal host controller (usb2 only). In order to do so, you have to agg otg_mode=1 at the end of /boot/config.txt. Please note that this will affect the mac address setup routine and the devices will not use the KUNBUS mac addresses.

Nicolai