aboutsummaryrefslogtreecommitdiffstats
path: root/Bootloaders/MassStorage/Descriptors.c
diff options
context:
space:
mode:
Diffstat (limited to 'Bootloaders/MassStorage/Descriptors.c')
-rw-r--r--Bootloaders/MassStorage/Descriptors.c42
1 files changed, 11 insertions, 31 deletions
diff --git a/Bootloaders/MassStorage/Descriptors.c b/Bootloaders/MassStorage/Descriptors.c
index 4de12075a..cbc320f9c 100644
--- a/Bootloaders/MassStorage/Descriptors.c
+++ b/Bootloaders/MassStorage/Descriptors.c
@@ -60,7 +60,7 @@ const USB_Descriptor_Device_t DeviceDescriptor =
.ManufacturerStrIndex = NO_DESCRIPTOR,
.ProductStrIndex = NO_DESCRIPTOR,
- .SerialNumStrIndex = USE_INTERNAL_SERIAL,
+ .SerialNumStrIndex = NO_DESCRIPTOR,
.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
};
@@ -124,17 +124,6 @@ const USB_Descriptor_Configuration_t ConfigurationDescriptor =
}
};
-/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
- * the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
- * via the language ID table available at USB.org what languages the device supports for its string descriptors.
- */
-const USB_Descriptor_String_t LanguageString =
-{
- .Header = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},
-
- .UnicodeString = {LANGUAGE_ID_ENG}
-};
-
/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
* documentation) by the application code so that the address and size of a requested descriptor can be given
* to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
@@ -145,30 +134,21 @@ uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
const uint8_t wIndex,
const void** const DescriptorAddress)
{
- const uint8_t DescriptorType = (wValue >> 8);
- const uint8_t DescriptorNumber = (wValue & 0xFF);
+ const uint8_t DescriptorType = (wValue >> 8);
const void* Address = NULL;
uint16_t Size = NO_DESCRIPTOR;
- switch (DescriptorType)
+ /* If/Else If chain compiles slightly smaller than a switch case */
+ if (DescriptorType == DTYPE_Device)
+ {
+ Address = &DeviceDescriptor;
+ Size = sizeof(USB_Descriptor_Device_t);
+ }
+ else if (DescriptorType == DTYPE_Configuration)
{
- case DTYPE_Device:
- Address = &DeviceDescriptor;
- Size = sizeof(USB_Descriptor_Device_t);
- break;
- case DTYPE_Configuration:
- Address = &ConfigurationDescriptor;
- Size = sizeof(USB_Descriptor_Configuration_t);
- break;
- case DTYPE_String:
- if (!(DescriptorNumber))
- {
- Address = &LanguageString;
- Size = pgm_read_byte(&LanguageString.Header.Size);
- }
-
- break;
+ Address = &ConfigurationDescriptor;
+ Size = sizeof(USB_Descriptor_Configuration_t);
}
*DescriptorAddress = Address;