two USB HOST working on same ESP32

[fotosettore]

hi
i'm using a ESP32.
i'd like to install two USB HOST device on the same esp32 --> https://i.ebayimg.com/images/g/UUQAAOSwFyhaF6Pj/s-l1600.jpg

I saw that, as default, usbh_midi refers to VSPI (18,19,23,5)
what i must do to use HSPI (14,12,13,15) also (in case it were possible to make them work together), or better more add another SS to use two usb host on same line (VSPI or HSPI) ?

here the code that works fine on VSPI with only one usb host shield

#include <usbh_midi.h>
USB Usb;
USBH_MIDI  Midi(&Usb);

//****
void setup() 
{
  Serial.begin(115200);
  if (Usb.Init() == -1) 
  {
    Serial.println("USB did not start.");
    while(1);
  }  
  else
  {
    Serial.println("Started USB :-)");
  }

/*
 ---> here i'd need to start another usb host  (ex.  usb_2) 
*/
}

i think i must refer to USB_MIDI_converter_multi.ino but i did not understand how to connect the pin SS of second usb host.
I have been looking for an example for two days but found nothing.

many thanks for help

[gdsports]

Maybe use a USB hub for more than USB MIDI devices. But you may need the fixes in PR #414 for hubs to work.

[fotosettore]

thanks for your reply
i made all modifications but i'm not skilled to understand what kind of code i must add in my sketch to obtain the second usb host.
may you help me with a very simple example ?
thanks

[fotosettore]

no info, no help ?

[xxxajk]

Not practical with this library, I still need to support espressif MCU in uhs3, which can do more than 1...

…

On Mon, Jul 22, 2019, 4:41 PM fotosettore ***@***.***> wrote: no info, no help ? — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#476?email_source=notifications&email_token=AA5SJTGETEC6JN2LW5CNOK3QAYLOZA5CNFSM4ICRYM32YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD2RDBHQ#issuecomment-513945758>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AA5SJTBK6Z6H5WPGLIWTHO3QAYLOZANCNFSM4ICRYM3Q> .

[fotosettore]

thanks ... i will wait and i will try to understand better
it should be very simple. we'd must change the SS pin
for example in the UsbCore.h i try to change this line

#elif defined(ESP8266) typedef MAX3421e<P2, P5> MAX3421E; // ESP8266 boards //P4=D2 P0=D3 P2=D4

and it works fine if i change first P
but i must to define two P, one for first host and another for second one.
i don't understand how to set two SS ...

[xxxajk]

Just wait for UHS3 to do this, as you won't have to worry so much on what to do.
I'll try to get to it this weekend... No promises though, I am quite busy.

[fotosettore]

really really many thanks ...

[CodeOhms]

If this has not been implemented when I get two shields in a month, I will try to help get this done.

[fotosettore]

hi everyone ...
no news about this problem ?

[fotosettore]

i think i have no hope for this issue :-(

[fusionstream]

Duplicate the library and change the pins as you have already done. Use the "different" library to control the other host. Alternatively, use a usb hub.