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| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-08-24 13:02:38 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-08-24 13:02:38 +0000 |
| commit | 092f82e06fc64436fd957b4b6b8d5ce33532efae (patch) | |
| tree | 3060a52e5f3e3a3486e7d2bd272cfc8e7ab58190 /Demos/Device/ClassDriver/MIDI | |
| parent | ed8ad18f26ef36a7c0cafd3aac1f672a06d14f76 (diff) | |
| download | lufa-092f82e06fc64436fd957b4b6b8d5ce33532efae.tar.gz lufa-092f82e06fc64436fd957b4b6b8d5ce33532efae.tar.bz2 lufa-092f82e06fc64436fd957b4b6b8d5ce33532efae.zip | |
Changed the signature of the CALLBACK_USB_GetDescriptor() callback function so that the descriptor pointer is const, to remove the need for extra casting inside the callback (thanks to Jonathan Kollasch).
Diffstat (limited to 'Demos/Device/ClassDriver/MIDI')
| -rw-r--r-- | Demos/Device/ClassDriver/MIDI/Descriptors.c | 16 | ||||
| -rw-r--r-- | Demos/Device/ClassDriver/MIDI/Descriptors.h | 3 |
2 files changed, 10 insertions, 9 deletions
diff --git a/Demos/Device/ClassDriver/MIDI/Descriptors.c b/Demos/Device/ClassDriver/MIDI/Descriptors.c index 9ce300afc..fc3addb95 100644 --- a/Demos/Device/ClassDriver/MIDI/Descriptors.c +++ b/Demos/Device/ClassDriver/MIDI/Descriptors.c @@ -285,37 +285,37 @@ USB_Descriptor_String_t PROGMEM ProductString = */ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, - void** const DescriptorAddress) + const void** const DescriptorAddress) { const uint8_t DescriptorType = (wValue >> 8); const uint8_t DescriptorNumber = (wValue & 0xFF); - void* Address = NULL; - uint16_t Size = NO_DESCRIPTOR; + const void* Address = NULL; + uint16_t Size = NO_DESCRIPTOR; switch (DescriptorType) { case DTYPE_Device: - Address = (void*)&DeviceDescriptor; + Address = &DeviceDescriptor; Size = sizeof(USB_Descriptor_Device_t); break; case DTYPE_Configuration: - Address = (void*)&ConfigurationDescriptor; + Address = &ConfigurationDescriptor; Size = sizeof(USB_Descriptor_Configuration_t); break; case DTYPE_String: switch (DescriptorNumber) { case 0x00: - Address = (void*)&LanguageString; + Address = &LanguageString; Size = pgm_read_byte(&LanguageString.Header.Size); break; case 0x01: - Address = (void*)&ManufacturerString; + Address = &ManufacturerString; Size = pgm_read_byte(&ManufacturerString.Header.Size); break; case 0x02: - Address = (void*)&ProductString; + Address = &ProductString; Size = pgm_read_byte(&ProductString.Header.Size); break; } diff --git a/Demos/Device/ClassDriver/MIDI/Descriptors.h b/Demos/Device/ClassDriver/MIDI/Descriptors.h index fc648de4b..8165fedf6 100644 --- a/Demos/Device/ClassDriver/MIDI/Descriptors.h +++ b/Demos/Device/ClassDriver/MIDI/Descriptors.h @@ -77,6 +77,7 @@ /* Function Prototypes: */ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint8_t wIndex, - void** const DescriptorAddress) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3); + const void** const DescriptorAddress) + ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3); #endif |