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Hi, |
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|
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for some third party USBasp (ISP flash programmer) clones I got |
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some dubious situation: |
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|
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These devices mainly consists of an ATmega 8A AU, which USB ports |
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connect to a USB connector and smoe GPIOs are used to flash |
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an attached microcontroller via ISP. |
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|
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That's the theory. |
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|
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Now I attach such a device to my Gentoo Linux box. |
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|
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dmesg saus: |
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[ 1919.948832] usb 7-4: new low-speed USB device number 7 using ohci-pci |
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[ 1920.108797] usb 7-4: New USB device found, idVendor=16c0, idProduct=05dc |
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[ 1920.108805] usb 7-4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 |
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[ 1920.108809] usb 7-4: Product: USBasp |
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[ 1920.108812] usb 7-4: Manufacturer: www.fischl.de |
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|
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which looks ok to me. |
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|
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lsusb says: |
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Bus 007 Device 007: ID 16c0:05dc Van Ooijen Technische Informatica shared ID for use with libusb |
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Device Descriptor: |
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bLength 18 |
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bDescriptorType 1 |
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bcdUSB 1.10 |
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bDeviceClass 255 Vendor Specific Class |
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bDeviceSubClass 0 |
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bDeviceProtocol 0 |
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bMaxPacketSize0 8 |
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idVendor 0x16c0 Van Ooijen Technische Informatica |
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idProduct 0x05dc shared ID for use with libusb |
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bcdDevice 1.02 |
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iManufacturer 1 www.fischl.de |
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iProduct 2 USBasp |
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iSerial 0 |
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bNumConfigurations 1 |
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Configuration Descriptor: |
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bLength 9 |
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bDescriptorType 2 |
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wTotalLength 18 |
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bNumInterfaces 1 |
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bConfigurationValue 1 |
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iConfiguration 0 |
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bmAttributes 0x80 |
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(Bus Powered) |
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MaxPower 50mA |
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Interface Descriptor: |
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bLength 9 |
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bDescriptorType 4 |
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bInterfaceNumber 0 |
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bAlternateSetting 0 |
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bNumEndpoints 0 |
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bInterfaceClass 0 |
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bInterfaceSubClass 0 |
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bInterfaceProtocol 0 |
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iInterface 0 |
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Device Status: 0x0000 |
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(Bus Powered) |
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|
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which also looks not that bad. |
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|
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...but...I get no device under /dev/ |
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like /dev/ttyUSB0 or such... |
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|
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there only an entry here |
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ls -l /dev/bus/usb/007/007 |
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crw-rw-r-- 1 root usb 189, 774 2017-08-30 17:56 007 |
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|
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Do I need more coffee or do I need more....what? |
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|
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Any help is much appreciated! |
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|
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Cheers |
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Meino |