flashhas.blogg.se - Driver usb friendly arm 2440 windows 10

In Device Drivers ->, then go to SCSI device support ->, SCSI device support In Linux/arm 3.8.7 Kernel Configuration -> Device Drivers ->, -> USB support Support for Host-side USBĬonfigure to install usb device driver in Kernel. In Linux 3.8.7 source code folder, make menuconfig. When the request is completed and the request has a callback function, the UDC driver dequeues the requests and calls its complete function. The UDC driver maintains a request queue for each of the 5 endpoints, a gadget driver puts request to the queues by calling queue(). Source code of the UDC drier for S3C2440 is linux-3.8.7/drivers/usb/gadget/s3c2410_udc.c.

The UDC of S3C2440A is integrated on the S3C2440 chip and hence is regarded as a platform device. They are defined in the file linux-3.8.7/include/linux/usb/gadget.h. A UDC driver must impelment a set of function to manipulate endpoints and gadget, as well as to register and unregister a gadget driver. Gadget drivers sit on top of the UDC dirver, and use the service it provides. The UDC driver reads/writes the registers of the UDC and reads/writes the FIFOs of the endpoints. Source code of USB host controller driver is linux-3.8.7/drivers/usb/host/ohci-s3c2410.c. Both USB host controller and UDC (USB device controller) are regarded as platform device and their drivers are registered as platform driver. S3C2440A board has two USB ports: the port with a type A connector works as a USB host the other with a Type B connector works as a USB peripheral.

Full speed USB device controller compatible with USB specification v1.1ĮP1: 128 byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA.ĮP2: 128 byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA.ĮP3: 128 byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA.ĮP4: 128 byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA.

Support for both LowSpeed and Full Speed USB devices.

S3C2440 supports 2-port USB host interface as follows, And tried to test S3C2440 board as USB Host, I didn’t get successful result. Tested on Embedded Linux S3C2440 target board to be configured as USB device, like USB mass storage and serial cable, the test result was successful.