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Fix to previous patch (make CDCHost demo deallocate pipes when an invalid CDC interface is skipped).

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Remove the saving of the USB_GetNextDescriptorComp() return value in all host demos, since it went unused anyway; replaced with a simple check against the success error code for clarity.
This commit is contained in:
Dean Camera 2009-05-15 08:02:30 +00:00
parent fabfdd454a
commit 76d5e99bb8
9 changed files with 46 additions and 34 deletions
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6
Demos/Host/GenericHIDHost/ConfigDescriptor.c
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@ -71,7 +71,8 @@ uint8_t ProcessConfigurationDescriptor(void)
return InvalidConfigDataReturned;
/* Get the HID interface from the configuration descriptor */
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, NextHIDInterface))
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
NextHIDInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Descriptor not found, error out */
return NoHIDInterfaceFound;
@ -80,7 +81,8 @@ uint8_t ProcessConfigurationDescriptor(void)
while (FoundEndpoints != ((1 << HID_DATA_IN_PIPE) | (1 << HID_DATA_OUT_PIPE)))
{
/* Get the next HID interface's data endpoint descriptor */
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData, NextInterfaceHIDDataEndpoint))
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
NextInterfaceHIDDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
/* Not all HID devices have an OUT endpoint - if we've reached the end of the HID descriptor
* but only found the mandatory IN endpoint, it's safe to continue with the device enumeration */