將usb做從機(jī)，hid通信操作（模擬串口，模擬u盤(pán)，hid通信...）

內(nèi)核設(shè)定

1-模擬u盤(pán)

2.模擬串口
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3.hid通信?

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?????????

1.報(bào)錯(cuò)：

# insmod libcomposite.ko
[ ? 88.529791] libcomposite: Unknown symbol usb_udc_attach_driver (err 0)
[ ? 88.536358] libcomposite: Unknown symbol usb_gadget_probe_driver (err 0)
[ ? 88.545108] libcomposite: Unknown symbol usb_gadget_ep_match_desc (err 0)
[ ? 88.552383] libcomposite: Unknown symbol usb_gadget_set_state (err 0)
[ ? 88.560708] libcomposite: Unknown symbol usb_gadget_unregister_driver (err 0)
insmod: can't insert 'libcomposite.ko': unknown symbol in module, or unknown parameter
#
#
#
# insmod configfs.ko
[ ? 96.653566] configfs: exports duplicate symbol config_group_find_item (owned by kernel)
insmod: can't insert 'configfs.ko': invalid module format
#
# insmod libcomposite.ko
[ ?101.661141] libcomposite: Unknown symbol usb_udc_attach_driver (err 0)
[ ?101.667983] libcomposite: Unknown symbol usb_gadget_probe_driver (err 0)
[ ?101.674674] libcomposite: Unknown symbol usb_gadget_ep_match_desc (err 0)
[ ?101.684324] libcomposite: Unknown symbol usb_gadget_set_state (err 0)
[ ?101.691233] libcomposite: Unknown symbol usb_gadget_unregister_driver (err 0)
insmod: can't insert 'libcomposite.ko': unknown symbol in module, or unknown parameter

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根源：配置出錯(cuò)

2.報(bào)錯(cuò)：can't insert 'g_hid.ko': No such device

?# insmod g_hid.ko
insmod: can't insert 'g_hid.ko': No such device
根源：缺少補(bǔ)丁
見(jiàn)分析：http://blog.chinaunix.net/uid-26418332-id-5107484.html

3.單獨(dú)配置和編譯Linux的驅(qū)動(dòng)driver下某個(gè)模塊，或者更新某個(gè)模塊的ko文件：

先cd到具體的目錄下，然后輸入指令；
make -C /home/user/NUC970_Buildroot-master/output/build/linux-master M=`pwd` modules

總結(jié)

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