Logitech wireless mouse AristoChen/usb-proxy proxy pass failed about raw-gadget

[imatespl]

Sorry, is the libusb mode the error,
event: control, length: 8 bRequestType: 0x21 (OUT), bRequest: 0x0a, wValue: 0x0000, **wIndex: 0x0001**, wLength: 0 type = USB_TYPE_CLASS req = unknown = 0xa **ep0: stalling**
this is make the raw_gaget device halt，and then next request failed， this code result is -1
https://github.com/AristoChen/usb-proxy/blob/6aecd455b2ef3d6734ab92105ca00c01464d4030/proxy.cpp#L490

[xairy]

Please try AristoChen/usb-proxy#6.

[imatespl]

ooh! very thanks, i will try it

[imatespl]

hi @xairy I test the code AristoChen/usb-proxy#6, there two issues.

1. my mouse is a low speed device, and it response the MaxPageSize0 is 0x08, it should change the MaxPackageSize0 0x40, 0x08 make the raw_gadget which use device musb-hdrc.4.auto dead loop,
2. ignore usb_raw_ep0_stall when SET_IDLE request to interface 1，it like in linux don't support this request, in proxy.cpp:499
   event: control, length: 8
   bRequestType: 0x21 (OUT), bRequest: 0x0a, wValue: 0x0000, wIndex: 0x0001, wLength: 0
   type = USB_TYPE_CLASS
   req = unknown = 0xa
   ep0: stalling
   I add this code in ep0_loop

--- a/proxy.cpp
+++ b/proxy.cpp
@@ -368,6 +368,12 @@ void ep0_loop(int fd) {
                                                break;
                                        }
                                }
+                               if ((event.ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD &&
+                                       event.ctrl.bRequest == USB_REQ_GET_DESCRIPTOR &&
+                                       (event.ctrl.wValue >> 8) == USB_DT_DEVICE) {
+                                       struct usb_device_descriptor* pdata = (struct usb_device_descriptor*)&io.data;
+                                       pdata->bMaxPacketSize0 = 64;
+                               }

                                if (verbose_level >= 2)
                                        printData(io, 0x00, "control", "in");
@@ -495,7 +501,14 @@ void ep0_loop(int fd) {
                                        printf("ep0: transferred %d bytes (out)\n", rv);
                                }
                                else {
-                                       usb_raw_ep0_stall(fd);
+                                       if (event.ctrl.bRequestType == 0x21
+                                               && event.ctrl.bRequest == 0x0a
+                                               && event.ctrl.wIndex != 0) {
+                                               continue;
+                                       }
+                                       else {
+                                               usb_raw_ep0_stall(fd);
+                                       }
                                }
                        }
                }