Hi3516A Device模式下计算机无法识别板载SD卡_问答

根据手册，做USB2.0 Device模式操作，命令如下：
insmod dwc_otg.ko
打印信息：
~# insmod dwc_otg.ko
dwc_otg: version 3.00a 10-AUG-2012
Core Release: 3.10a
Setting default values for core params
Using Buffer DMA mode
Periodic Transfer Interrupt Enhancement - disabled
Multiprocessor Interrupt Enhancement - disabled
OTG VER PARAM: 0, OTG VER FLAG: 0
Dedicated Tx FIFOs mode

insmod g_file_storage.ko file=/dev/mmcblk0pX luns=1 stall=0 removable=1（后改为g_mass_storage.ko）
打印信息：
~ # insmod g_file_storage.ko file=/dev/mtdblock1 luns=1 stall=0 removable=1
g_file_storage gadget: controller 'dwc_otg_pcd' not recognized
g_file_storage gadget: No serial-number string provided!
g_file_storage gadget: File-backed Storage Gadget, version: 1 September 2010
g_file_storage gadget: NOTE: This driver is deprecated. Consider using
g_mass_storage instead.
g_file_storage gadget: Number of LUNs=1
g_file_storage gadget-lun0: ro=0, nofua=0, file: /dev/mtdblock1

后将USB接口连接计算机，打印信息如下：（也找不到相应的设备节点）
~# USB2-1： new full-speed USB device number 2 using hiusb-ohci
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error:Oops: 80000007 [#1] ARM
......

尝试多种方法不行，请教各位大神，帮忙提供意见，多谢啦

主要是这个错误：g_file_storage gadget: controller 'dwc_otg_pcd' not recognized
通过修改gadget_chips.h增加海思UDC的设备代号可解

--- gadget_chips.h.orig 2016-11-12 15:34:28.207573500 +0800
+++ gadget_chips.h 2016-11-11 20:40:18.290281156 +0800
@@ -50,6 +50,7 @@
#define gadget_is_s3c2410(g) (!strcmp("s3c2410_udc", (g)->name))
#define gadget_is_s3c_hsotg(g) (!strcmp("s3c-hsotg", (g)->name))
#define gadget_is_s3c_hsudc(g) (!strcmp("s3c-hsudc", (g)->name))
+#define gadget_is_dwc_otg_pcd(g) (!strcmp("dwc_otg_pcd", (g)->name))

/**
* usb_gadget_controller_number - support bcdDevice id convention
@@ -118,6 +119,8 @@ static inline int usb_gadget_controller_
return 0x31;
else if (gadget_is_dwc3(gadget))
return 0x32;
+ else if (gadget_is_dwc_otg_pcd(gadget))
+ return 0x33;

return -ENOENT;
}

Hi3516A Device模式下计算机无法识别板载SD卡

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Hi3516A Device模式下 计算机无法识别板载SD卡

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Hi3516A Device模式下计算机无法识别板载SD卡