[英]Usb mass storage file system location on QNX
I need my software to be notifed that usb mass storage stick has been inserterd, also i need locationa where this stick has been mounted. 我需要通知我的软件,表明已插入USB大容量存储棒,也需要安装该棒的locationa。 Is it possible to obtain this information, especially location on fs where stick has been mounted from any C library ?
是否有可能获得此信息,尤其是从任何C库中已安装Stick的fs上的位置?
For instertion i already know usbd_connect() and i'm using it. 我已经知道了usbd_connect()并正在使用它。 Unfortunatelly there is no information with respect to location on fs.
不幸的是,没有关于fs位置的信息。
regards JosiP 问候乔西
io-usb should be up and running on your target. io-usb应该已启动并在目标上运行。
Add the library "usbdi" to your project. 将库“ usbdi”添加到您的项目。
Then use the following code snipet : 然后使用以下代码snipet:
#include <sys/usbdi.h>
static struct usbd_connection *conn_usb = NULL;
static void cbinsert(struct usbd_connection *connection, usbd_device_instance_t *ins);
static void cbremove(struct usbd_connection *connection, usbd_device_instance_t *ins);
int init(void)
{
usbd_funcs_t funcs = { _USBDI_NFUNCS, cbinsert, cbremove, NULL };
usbd_connect_parm_t parm = {NULL, USB_VERSION, USBD_VERSION, 0, 0, NULL, 0, NULL, &funcs,0};
if (usbd_connect(&parm, &conn_usb) != EOK) {
/* write your own error handler */
}
And then, add your customized handler : 然后,添加您的自定义处理程序:
static void cbinsert(struct usbd_connection *usb_connection,usbd_device_instance_t *usb_instance)
{
if (usb_instance->ident.dclass == 8 && usb_instance->ident.subclass == 6) {
/* USB mass storage */
} else if (usb_instance->ident.dclass == 3 && usb_instance->ident.subclass == 1) {
/* USB mouse */
} else {
/* unknown device */
}
This is an example. 这是一个例子。 You will have to customized it.
您将必须对其进行自定义。 But everything you need is there.
但是您所需的一切都在那里。
Hope this help ! 希望对您有所帮助! Emmanuel
伊曼纽尔
Try using MCD(Media Content Detector) in QNX. 尝试在QNX中使用MCD(媒体内容检测器)。 Refer to the below links -
请参阅以下链接-
http://www.qnx.com/developers/docs/6.4.1/neutrino/utilities/m/mcd.html http://www.qnx.com/developers/docs/660/index.jsp?topic=%2Fcom.qnx.doc.dev_pub.ref_guide%2Ftopic%2Fdrivers.html http://www.qnx.com/developers/docs/6.4.1/neutrino/utilities/m/mcd.html http://www.qnx.com/developers/docs/660/index.jsp?topic=% 2Fcom.qnx.doc.dev_pub.ref_guide%2Ftopic%2Fdrivers.html
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