linux usb audio interface

optional. Machine DAI ConfigurationMachine digital audio interface configuration-------------------------The machine DAI configuration glues all the codec and CPU DAIs together. It canAlso be used to set up the DAI system clock and for any machine related DAIInitialisation e.g. the machine audio map can be connected to the codec audioMap, unconnected codec pins

Bowen from Http://blog.csdn.net/droidphone Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx1. Origin of Asoc Asoc--alsa system on Chip is built on a standard ALSA drive layer to better support a software system for embedded processors and audio codec in mobile devices. Before ASOC, the kernel had some support for

, Scsi_mod and so on. Where the usb-storage state should be (unused). 3. Insert U disk, Non-stop/sbin/lsmod, this period usb-storage state should be initializing, lasted about half a minute, in fact, the equivalent of windows in the lower right corner of the balloon balloons:) 4. After initialization,/SBIN/FDISK-L should be able to see the/DEV/SDA1 device. At this point, the execution Mount/dev/sda1/mnt/udi

The problem of usb-skeleton.c compilation in Linux System ~ Could you please advise. Urgent. -- Linux general technology-Linux programming and kernel information. The following is a detailed description. I recently learned how to write a program for usb communication between

hardware-driven--USB devices (upper) (Driver configuration section) under LinuxHttp://www.ibm.com/developerworks/cn/linux/l-usb/index1.html hardware-driven--USB devices under Linux (bottom) (Drive development section)Http://www.ibm.com/developerworks/cn/

Development Board. The following startup information is displayed: ...... Usbhid: v2.6: USB hid Core DriverAdvanced Linux sound architecture driver version 1.0.21.No device for Dai uda134xNo device for Dai s3c24xx-i2sS3c24xx_uda134x SOC audio driverUda134x SOC Audio CodecASOC: uda134x s3c24xx-i2s mapping OKALSA device

LInux USB Architecture you can see that a USB system requires 4 drivers: USB device driver (mainly written in this section) , USB Host Controller driver , Gadget Drive , UDC Drive . There are 4 main features of

origin:https://blog.csdn.net/wuyuwei45/article/details/8926858 Linux kernel2.6 in the above version, the USB device-driven interface changed to Gadget, in the Kernel/driver/usb/gadget directory mainly includes platform USB UDC drive and gadget

kernel source code directory is: linux-2.6.32.2/Drivers/HID/usbhid, where the USB keyboard and bar code scanner is the same principle, therefore, their code is the same. [*]/Dev/hiddev raw HID device support // access the HID device in RAW mode. After the preceding information is selected, you can view the following startup information on the console: ...... Usbcore: registered new

file system interface and platform device-driven registration (platform_driver_register).Here we explain the Debugfs, as the name implies, is a virtual file system for kernel debugging, kernel developers exchange data through Debugfs and user space. Similar virtual file systems, such as PROCFS and SYSFS, are not actually stored on the hard disk, but are built after the Linux kernel is running. User space M

How can I use a USB flash drive in Linux? -- Linux general technology-Linux technology and application information. For details, refer to the following section. USB device usage in linux Environment:

1. the role of the platform driver in ASOC has been described in the previous chapters. ASOC is divided into three parts: machine, platform, and CODEC. The main role of the platform driver is to manage audio data, finally, the audio data is transmitted to codec through the digital audio interface (DAI) of the CPU for p

written to the USB flash drive, not your first system on the disk (hard disk) above, that is, the MBR installed on your USB drive disk above, this is wrong, because the MBR is not a file, So you can't copy it from the USB stick to the disk on your first system. Because your u disk's MBR has been modified, so before the start of the U disk (U start) will not have

multiple endpoints. In a USB device, each device can contain one or more configurations. Different Configurations make the device display different combinations of functions. The configuration consists of multiple interfaces. An interface consists of multiple endpoints and represents a basic function. It is an object controlled by the driver of a USB device. a