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stm32: usb: register control handlers in config callback

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As found in 6f2b39c1be6a8b9531264d92138dc2629d51cfa0, you can't just register a
control callback by itself, you can only register them in the set config
callback, (or, at least, _after_ set config has been done.

This has been compile tested only for the extra examples that were found to
have this failing pattern.
This commit is contained in:
Karl Palsson
2015-08-23 15:00:59 +00:00
parent dd0e48369d
commit 393fe8e449
4 changed files with 48 additions and 20 deletions
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16
examples/stm32/f1/stm32-h107/usb_simple/usb_simple.c
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@@ -96,6 +96,16 @@ static int simple_control_callback(usbd_device *usbd_dev, struct usb_setup_data
return 1;
}
static void usb_set_config_cb(usbd_device *usbd_dev, uint16_t wValue)
{
(void)wValue;
usbd_register_control_callback(
usbd_dev,
USB_REQ_TYPE_VENDOR,
USB_REQ_TYPE_TYPE,
simple_control_callback);
}
int main(void)
{
usbd_device *usbd_dev;
@@ -111,11 +121,7 @@ int main(void)
GPIO_CNF_OUTPUT_PUSHPULL, GPIO6);
usbd_dev = usbd_init(&stm32f107_usb_driver, &dev, &config, usb_strings, 3, usbd_control_buffer, sizeof(usbd_control_buffer));
usbd_register_control_callback(
usbd_dev,
USB_REQ_TYPE_VENDOR,
USB_REQ_TYPE_TYPE,
simple_control_callback);
usbd_register_set_config_callback(usbd_dev, usb_set_config_cb);
while (1)
usbd_poll(usbd_dev);