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samples: dfu: fix usb configuration descriptor length

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The macros for calculating the length of the configuration
descriptors have been interchanged, fix it, and use the
correct macro for the length of the DFU mode configuration
descriptor.

Signed-off-by: Johann Fischer <j.fischer@phytec.de>
This commit is contained in:
Johann Fischer 2017-07-14 11:18:03 +02:00 committed by Anas Nashif
parent 35b34c2e65
commit a8d7659a63
2 changed files with 4 additions and 4 deletions
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4
samples/subsys/usb/dfu/src/usb_dfu.c
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@ -197,8 +197,8 @@ static const u8_t dfu_mode_usb_description[] = {
USB_CONFIGURATION_DESC_SIZE, /* Descriptor size */
USB_CONFIGURATION_DESC, /* Descriptor type */
/* Total length in bytes of data returned */
LOW_BYTE(DFU_RUNTIME_CONF_SIZE),
HIGH_BYTE(DFU_RUNTIME_CONF_SIZE),
LOW_BYTE(DFU_MODE_CONF_SIZE),
HIGH_BYTE(DFU_MODE_CONF_SIZE),
DFU_NUM_ITF, /* Number of interfaces */
0x01, /* Configuration value */
0x00, /* Index of the Configuration string */

4
samples/subsys/usb/dfu/src/usb_dfu.h
View file

@ -116,11 +116,11 @@ enum dfu_state {
* For DFU: CONF + ITF*ALT_SETTINGS + DFU)
*/
#define DFU_MODE_CONF_SIZE (USB_CONFIGURATION_DESC_SIZE + \
USB_INTERFACE_DESC_SIZE * DFU_RUNTIME_ALTERNATE_SETTINGS + \
USB_INTERFACE_DESC_SIZE * DFU_MODE_ALTERNATE_SETTINGS + \
USB_DFU_DESC_SIZE)
#define DFU_RUNTIME_CONF_SIZE (USB_CONFIGURATION_DESC_SIZE + \
USB_INTERFACE_DESC_SIZE * DFU_MODE_ALTERNATE_SETTINGS + \
USB_INTERFACE_DESC_SIZE * DFU_RUNTIME_ALTERNATE_SETTINGS + \
USB_DFU_DESC_SIZE)
/* Alternate settings are used to access additional memory segments.