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usb: fix "usb_hid_poll() error: 6" after reconnecting two or more devices

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This error was caused by missing bmSndToggle/bmRcvToggle fields initialization. I decided to zeroing allocated dev struct completely instead of setting these fields in usb_hid_init(), as zeroing approach potentialy is more safe, since there may be  other unitialized fields in dark corners of code.
This commit is contained in:
Eugene Lozovoy
2024-09-05 20:22:51 +03:00
parent 07381f5d28
commit ac42d360eb
1 changed files with 3 additions and 6 deletions
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9
usb/usb.c
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@@ -1,4 +1,5 @@
#include <stdio.h>
#include <string.h>
#include "timer.h"
#include "usb.h"
@@ -52,20 +53,16 @@ uint8_t usb_configure(uint8_t parent, uint8_t port, bool lowspeed) {
if(i < USB_NUMDEVICES) {
iprintf("using free entry at %d\n", i);
usb_device_t *d = dev+i;
usb_device_t *d = &dev[i];
memset(d, 0, sizeof(*d));
// setup generic info
d->bAddress = 0;
d->parent = parent;
d->lowspeed = lowspeed;
d->port = port;
d->class = NULL;
d->vid = d->pid = 0;
// setup endpoint 0
d->ep0.epAddr = 0;
d->ep0.maxPktSize = 8;
d->ep0.epAttribs = 0;
d->ep0.bmNakPower = USB_NAK_MAX_POWER;
if(rcode = usb_get_dev_descr( d, 8, &dev_desc ))