Interupt Out Heeelp :)
Posted: Tue Dec 04, 2007 3:41 am
I have 2 endpoints other than 0. I have interupt in 1 and interupt 1 out.
I can get either the interupt in or the interupt out working, but never both together.
When i place the endpoint descriptors as shown above, I only get the interupt in 1 to work....When I swap them, then only the interupt out 1 will work.
Can anyone see a problem with the above discriptor? The logic I have written must be ok because one or the other will work, but never both.
Also, I've been able to get a Hid report with both 16bit inputs and 16bit outputs. All seems well there, so you can ignor my other post.
Update:
It appears that I needed to update this sum of this value. I just added the size of the extra endpoint to this line and it all works
I can get either the interupt in or the interupt out working, but never both together.
Code: Select all
PROGMEM char usbDescriptorConfiguration[] = { /* USB configuration descriptor */
9, /* sizeof(usbDescriptorConfiguration): length of descriptor in bytes */
USBDESCR_CONFIG, /* descriptor type */
18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + (USB_CFG_DESCR_PROPS_HID & 0xff), 0,
/* total length of data returned (including inlined descriptors) */
1, /* number of interfaces in this configuration */
1, /* index of this configuration */
0, /* configuration name string index */
#if USB_CFG_IS_SELF_POWERED
USBATTR_SELFPOWER, /* attributes */
#else
USBATTR_BUSPOWER, /* attributes */
#endif
USB_CFG_MAX_BUS_POWER/2, /* max USB current in 2mA units */
/* interface descriptor follows inline: */
9, /* sizeof(usbDescrInterface): length of descriptor in bytes */
USBDESCR_INTERFACE, /* descriptor type */
0, /* index of this interface */
0, /* alternate setting for this interface */
2, /* endpoints excl 0: number of endpoint descriptors to follow */
USB_CFG_INTERFACE_CLASS,
USB_CFG_INTERFACE_SUBCLASS,
USB_CFG_INTERFACE_PROTOCOL,
0, /* string index for interface */
#if (USB_CFG_DESCR_PROPS_HID & 0xff) /* HID descriptor */
9, /* sizeof(usbDescrHID): length of descriptor in bytes */
USBDESCR_HID, /* descriptor type: HID */
0x01, 0x01, /* BCD representation of HID version */
0x00, /* target country code */
0x01, /* number of HID Report (or other HID class) Descriptor infos to follow */
0x22, /* descriptor type: report */
USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH, 0, /* total length of report descriptor */
#endif
#if USB_CFG_HAVE_INTRIN_ENDPOINT /* endpoint descriptor for endpoint 1 */
7, /* sizeof(usbDescrEndpoint) */
USBDESCR_ENDPOINT, /* descriptor type = endpoint */
0x81, /* IN endpoint number 1 */
0x03, /* attrib: Interrupt endpoint */
8, 0, /* maximum packet size */
USB_CFG_INTR_POLL_INTERVAL, /* in ms */
#endif
#if USB_CFG_IMPLEMENT_FN_WRITEOUT /* endpoint descriptor for endpoint 1 out */
7, /* sizeof(usbDescrEndpoint) */
USBDESCR_ENDPOINT, /* descriptor type = endpoint */
0x01, /* Out endpoint number 1 */
0x03, /* attrib: Interrupt endpoint */
8, 0, /* maximum packet size */
USB_CFG_INTR_POLL_INTERVAL+25 /* in ms */
#endif
};When i place the endpoint descriptors as shown above, I only get the interupt in 1 to work....When I swap them, then only the interupt out 1 will work.
Can anyone see a problem with the above discriptor? The logic I have written must be ok because one or the other will work, but never both.
Also, I've been able to get a Hid report with both 16bit inputs and 16bit outputs. All seems well there, so you can ignor my other post.
Update:
Code: Select all
18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + (USB_CFG_DESCR_PROPS_HID & 0xff), It appears that I needed to update this sum of this value. I just added the size of the extra endpoint to this line and it all works
Code: Select all
18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + 7 * USB_CFG_IMPLEMENT_FN_WRITEOUT + (USB_CFG_DESCR_PROPS_HID & 0xff)