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