【发布时间】:2019-06-19 05:01:29
【问题描述】:
所以我在运行 claimInterface() 函数时尝试连接到 openEEG
NetworkError:无法声明接口
lsusb 显示这个问题很可能是因为某些 MSI 驱动程序正在同一个驱动程序上运行
lsusb -v -s4 的输出
Bus 002 Device 004: ID 1770:ff00
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1770
idProduct 0xff00
bcdDevice 1.10
iManufacturer 1 MSI EPF USB
iProduct 1 MSI EPF USB
iSerial 1 MSI EPF USB
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 2mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.10
bCountryCode 33 US
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 57
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0xa630
(Bus Powered)
Bus 001 Device 004: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x0403 Future Technology Devices International, Ltd
idProduct 0x6001 FT232 USB-Serial (UART) IC
bcdDevice 6.00
iManufacturer 1 FTDI
iProduct 2 FT232R USB UART
iSerial 3 A105XV9J
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 90mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 2 FT232R USB UART
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Device Status: 0x0000
(Bus Powered)
我最初尝试在navigator.usb.requestDevice 上添加 255 作为 classCode,因为文档说我可以这样做,但它们没有相同的 ID,所以这毫无意义。同样,在重新连接后,我只能将 lsusb 输出到 MSI 驱动程序,即使 Chrome 将其拾取并且我得到了 access denied error。
这很奇怪,因为我更改了udev规则并在dev/bus/usb中使用了sudo chmod -R 777 *
然后我在文件夹“001”中发现了一个文件,之前我必须手动更改权限,以为它是 MSI 驱动程序,但这次原始文件被删除,代替了名为“007”而不是“005”的文件(可能是因为我尝试了两次插入设备)
所以这一定是 MSI 安全功能的组合?和 OpenEEG 每次加载时都会创建一个新文件?
我能想到的唯一解决方案是删除我不理解的文件并在每次插入时更改权限。这两种方法都非常禁止使用,特别是因为我希望我的网站能够在广泛的范围内工作设备和操作系统的范围
PS:如果相关,请使用 Linux Mint,这是我在本地 node.js 服务器上运行的代码(我认为这不是问题)
document.addEventListener('DOMContentLoaded', event => {
let button = document.getElementById('connect')
button.addEventListener('click', async() => {
var device
const VENDOR_ID = 0x0403
const PRODUCT_ID = 0x6001
const CLASS_CODE = 255
device = await navigator.usb.requestDevice({
filters: [{
vendorId: VENDOR_ID,
productId: PRODUCT_ID,
classCode: CLASS_CODE
}]
})
console.log('opening..')
await device.open()
console.log('open!')
.then(() => device.selectConfiguration(1))
.then(() => device.claimInterface(0)).catch(error => { console.log(error + 'eeeeeeerrrr ' + device.configuration.interfaces[0].interfaceNumber); });
console.log(device);
await device.close().catch(error => { console.log(error + 'eeeeeeerrrr'); });
});
})
编辑/更新:lsusb 在未连接时不返回任何内容,这两个驱动程序来自同一个输入???????
【问题讨论】:
标签: javascript linux usb linux-mint webusb