This sample code is that usb composite device. It s sample usb speaker and mouse funciton.

USB_SPK
.......\STM32F10xUSBLib
.......\...............\FWLib
.......\...............\.....\library
.......\...............\.....\.......\inc
.......\...............\.....\.......\...\cortexm3_macro.h
.......\...............\.....\.......\...\stm32f10x_adc.h
.......\...............\.....\.......\...\stm32f10x_bkp.h
.......\...............\.....\.......\...\stm32f10x_can.h
.......\...............\.....\.......\...\stm32f10x_dma.h
.......\...............\.....\.......\...\stm32f10x_exti.h
.......\...............\.....\.......\...\stm32f10x_flash.h
.......\...............\.....\.......\...\stm32f10x_gpio.h
.......\...............\.....\.......\...\stm32f10x_i2c.h
.......\...............\.....\.......\...\stm32f10x_iwdg.h
.......\...............\.....\.......\...\stm32f10x_lib.h
.......\...............\.....\.......\...\stm32f10x_map.h
.......\...............\.....\.......\...\stm32f10x_nvic.h
.......\...............\.....\.......\...\stm32f10x_pwr.h
.......\...............\.....\.......\...\stm32f10x_rcc.h
.......\...............\.....\.......\...\stm32f10x_rtc.h
.......\...............\.....\.......\...\stm32f10x_spi.h
.......\...............\.....\.......\...\stm32f10x_systick.h
.......\...............\.....\.......\...\stm32f10x_tim.h
.......\...............\.....\.......\...\stm32f10x_tim1.h
.......\...............\.....\.......\...\stm32f10x_type.h
.......\...............\.....\.......\...\stm32f10x_usart.h
.......\...............\.....\.......\...\stm32f10x_wwdg.h
.......\...............\.....\.......\src
.......\...............\.....\.......\...\stm32f10x_adc.c
.......\...............\.....\.......\...\stm32f10x_bkp.c
.......\...............\.....\.......\...\stm32f10x_can.c
.......\...............\.....\.......\...\stm32f10x_dma.c
.......\...............\.....\.......\...\stm32f10x_exti.c
.......\...............\.....\.......\...\stm32f10x_flash.c
.......\...............\.....\.......\...\stm32f10x_gpio.c
.......\...............\.....\.......\...\stm32f10x_i2c.c
.......\...............\.....\.......\...\stm32f10x_iwdg.c
.......\...............\.....\.......\...\stm32f10x_lib.c
.......\...............\.....\.......\...\stm32f10x_nvic.c
.......\...............\.....\.......\...\stm32f10x_pwr.c
.......\...............\.....\.......\...\stm32f10x_rcc.c
.......\...............\.....\.......\...\stm32f10x_rtc.c
.......\...............\.....\.......\...\stm32f10x_spi.c
.......\...............\.....\.......\...\stm32f10x_systick.c
.......\...............\.....\.......\...\stm32f10x_tim.c
.......\...............\.....\.......\...\stm32f10x_tim1.c
.......\...............\.....\.......\...\stm32f10x_usart.c
.......\...............\.....\.......\...\stm32f10x_wwdg.c
.......\...............\USBLib
.......\...............\......\demos
.......\...............\......\.....\Audio_Speaker
.......\...............\......\.....\.............\include
.......\...............\......\.....\.............\.......\hw_config.h
.......\...............\......\.....\.............\.......\stm32f10x_conf.h
.......\...............\......\.....\.............\.......\stm32f10x_it.h
.......\...............\......\.....\.............\.......\usb_conf.h
.......\...............\......\.....\.............\.......\usb_desc.h
.......\...............\......\.....\.............\.......\usb_istr.h
.......\...............\......\.....\.............\.......\usb_prop.h
.......\...............\......\.....\.............\.......\usb_pwr.h
.......\...............\......\.....\.............\project
.......\...............\......\.....\.............\.......\EWARM
.......\...............\......\.....\.............\.......\.....\AudioSpeaker.dep
.......\...............\......\.....\.............\.......\.....\AudioSpeaker.ewd
.......\...............\......\.....\.............\.......\.....\AudioSpeaker.ewp
.......\...............\......\.....\.............\.......\.....\AudioSpeaker.eww
.......\...............\......\.....\.............\.......\.....\Backup of AudioSpeaker.ewd
.......\...............\......\.....\.............\.......\.....\Backup of AudioSpeaker.ewp
....

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