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| author | Dean Camera <dean@fourwalledcubicle.com> | 2011-03-13 21:25:05 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-03-13 21:25:05 +0000 |
| commit | 6005a42150bf4d713fd962498bde8b540fef4035 (patch) | |
| tree | caebf4a4a487b5544f49123add4d6cc3e9284918 /LUFA/Drivers/USB/Core/StdDescriptors.h | |
| parent | f301a4a21f34bea6c41872258a9dab3263f04e2a (diff) | |
| download | lufa-6005a42150bf4d713fd962498bde8b540fef4035.tar.gz lufa-6005a42150bf4d713fd962498bde8b540fef4035.tar.bz2 lufa-6005a42150bf4d713fd962498bde8b540fef4035.zip | |
Add experimental support for the UC3A0, UC3A1 and UC3A3 series AVR32 microcontrollers.
Diffstat (limited to 'LUFA/Drivers/USB/Core/StdDescriptors.h')
| -rw-r--r-- | LUFA/Drivers/USB/Core/StdDescriptors.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/LUFA/Drivers/USB/Core/StdDescriptors.h b/LUFA/Drivers/USB/Core/StdDescriptors.h index 1ad1497ae..908f27bcd 100644 --- a/LUFA/Drivers/USB/Core/StdDescriptors.h +++ b/LUFA/Drivers/USB/Core/StdDescriptors.h @@ -76,17 +76,24 @@ */ #define NO_DESCRIPTOR 0 - /** Macro to calculate the power value for the configuration descriptor, from a given number of milliamperes. */ + /** Macro to calculate the power value for the configuration descriptor, from a given number of milliamperes. + * + * \param[in] mA Maximum number of milliamps the device consumes when the given configuration is selected. + */ #define USB_CONFIG_POWER_MA(mA) ((mA) >> 1) /** Macro to calculate the Unicode length of a string with a given number of Unicode characters. * Should be used in string descriptor's headers for giving the string descriptor's byte length. + * + * \param[in] UnicodeChars Number of Unicode characters in the string text. */ - #define USB_STRING_LEN(str) (sizeof(USB_Descriptor_Header_t) + ((str) << 1)) + #define USB_STRING_LEN(UnicodeChars) (sizeof(USB_Descriptor_Header_t) + ((UnicodeChars) << 1)) /** Macro to encode a given four digit floating point version number (e.g. 01.23) into Binary Coded * Decimal format for descriptor fields requiring BCD encoding, such as the USB version number in the * standard device descriptor. + * + * \param[in] x Version number to encode as a 16-bit little-endian number, as a floating point number. */ #define VERSION_BCD(x) CPU_TO_LE16((((VERSION_TENS(x) << 4) | VERSION_ONES(x)) << 8) | \ ((VERSION_TENTHS(x) << 4) | VERSION_HUNDREDTHS(x))) |