diff options
| author | Dean Camera <dean@fourwalledcubicle.com> | 2009-06-19 03:37:47 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-06-19 03:37:47 +0000 |
| commit | dfa547164a1f9aefe202041e61075852f6e47191 (patch) | |
| tree | bf01445acc8cbf41c614ef5a928802fd0ec9eeda /LUFA/Drivers | |
| parent | 0d8679cf6bf02b3fd07028f63187286f5d4ffc20 (diff) | |
| download | lufa-dfa547164a1f9aefe202041e61075852f6e47191.tar.gz lufa-dfa547164a1f9aefe202041e61075852f6e47191.tar.bz2 lufa-dfa547164a1f9aefe202041e61075852f6e47191.zip | |
Extend USB_GetDeviceConfigDescriptor() routine to require the configuration number within the device to fetch, to add support for multi-configuration devices.
Diffstat (limited to 'LUFA/Drivers')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/CDC.c | 4 | ||||
| -rw-r--r-- | LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c | 4 | ||||
| -rw-r--r-- | LUFA/Drivers/USB/HighLevel/ConfigDescriptor.h | 7 |
3 files changed, 9 insertions, 6 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/CDC.c b/LUFA/Drivers/USB/Class/Host/CDC.c index 3a572f18f..aef5b3539 100644 --- a/LUFA/Drivers/USB/Class/Host/CDC.c +++ b/LUFA/Drivers/USB/Class/Host/CDC.c @@ -40,7 +40,7 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInt uint16_t ConfigDescriptorSize;
uint8_t FoundEndpoints = 0;
- if (USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)
+ if (USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, NULL) != HOST_SENDCONTROL_Successful)
return CDC_ENUMERROR_ControlError;
if (ConfigDescriptorSize > 512)
@@ -48,7 +48,7 @@ static uint8_t CDC_Host_ProcessConfigDescriptor(USB_ClassInfo_CDC_Host_t* CDCInt ConfigDescriptorData = alloca(ConfigDescriptorSize);
- USB_GetDeviceConfigDescriptor(&ConfigDescriptorSize, ConfigDescriptorData);
+ USB_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData);
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return CDC_ENUMERROR_InvalidConfigDataReturned;
diff --git a/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c b/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c index bbe258b3a..47982b806 100644 --- a/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c +++ b/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c @@ -31,7 +31,7 @@ #include "ConfigDescriptor.h"
#if defined(USB_CAN_BE_HOST)
-uint8_t USB_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
+uint8_t USB_GetDeviceConfigDescriptor(uint8_t ConfigNumber, uint16_t* const ConfigSizePtr, void* BufferPtr)
{
uint8_t ErrorCode;
@@ -39,7 +39,7 @@ uint8_t USB_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* Buffe {
.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
.bRequest = REQ_GetDescriptor,
- .wValue = (DTYPE_Configuration << 8),
+ .wValue = ((DTYPE_Configuration << 8) | (ConfigNumber - 1)),
.wIndex = 0,
.wLength = sizeof(USB_Descriptor_Configuration_Header_t),
};
diff --git a/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.h b/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.h index 5c2b6e2de..17b6378e9 100644 --- a/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.h +++ b/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.h @@ -183,6 +183,9 @@ /* Function Prototypes: */
/** Retrieves the configuration descriptor data or size from an attached device via a standard request.
*
+ * \param ConfigNumber Device configuration descriptor number to fetch from the device (usually set to 1 for
+ * single configuration devices)
+ *
* \param ConfigSizePtr Pointer to a uint16_t for either storing or retrieving the configuration
* descriptor size
*
@@ -192,8 +195,8 @@ * of bytes indicated by ConfigSizePtr of the configuration descriptor will be loaded
* into the buffer
*/
- uint8_t USB_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
- ATTR_NON_NULL_PTR_ARG(1);
+ uint8_t USB_GetDeviceConfigDescriptor(uint8_t ConfigNumber, uint16_t* const ConfigSizePtr, void* BufferPtr)
+ ATTR_NON_NULL_PTR_ARG(2);
/** Skips to the next sub-descriptor inside the configuration descriptor of the specified type value.
* The bytes remaining value is automatically decremented.
|