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#ifndef _ERROR_H_
#define _ERROR_H_
typedef enum {
USB_ERROR_TYPE_NONE = 0,
USB_ERROR_TYPE_STRING,
USB_ERROR_TYPE_ERRNO,
} usb_error_type_t;
extern char usb_error_str[8192];
extern int usb_error_errno;
extern usb_error_type_t usb_error_type;
#define USB_ERROR(x) \
do { \
usb_error_type = USB_ERROR_TYPE_ERRNO; \
usb_error_errno = x; \
return x; \
} while (0)
#define USB_ERROR_STR(x, format, args...) \
do { \
usb_error_type = USB_ERROR_TYPE_STRING; \
snprintf(usb_error_str, sizeof(usb_error_str) - 1, format, ## args); \
if (usb_debug >= 2) \
fprintf(stderr, "USB error: %s\n", usb_error_str); \
return x; \
} while (0)
#endif /* _ERROR_H_ */
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