Tiny Core Linux

Tiny Core Base => Raspberry Pi => Topic started by: bellad on June 18, 2015, 05:03:55 AM

Title: persistant rules
Post by: bellad on June 18, 2015, 05:03:55 AM

hi,
i've 2 usb serial
after one change eeprom serial ( 0001 to 1740 )
i put in

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/etc/udev/rules.d/99.persistantusb.rules

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SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", ATTRS{serial}=="0001", SYMLINK+="ttyUSB0"
SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", ATTRS{serial}=="1740", SYMLINK+="ttyUSB1"
but no good ,always :
 serial 0001 = ttyUSB1
and serial 1740 = ttyUSB0

Title: Re: persistant rules
Post by: bmarkus on June 18, 2015, 05:30:56 AM

What is the output of 'udevadem monitor' when you plugin the adapters?

Title: Re: persistant rules
Post by: bellad on June 18, 2015, 05:45:35 AM

Code: [Select]

monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent

KERNEL[167.560923] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3 (usb)
UDEV  [167.565360] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3 (usb)
KERNEL[167.568718] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0 (usb)
UDEV  [167.571235] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0 (usb)
KERNEL[167.745585] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/ttyUSB0 (usb-serial)
KERNEL[167.746242] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
UDEV  [167.750128] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/ttyUSB0 (usb-serial)
UDEV  [167.759509] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/ttyUSB0/tty/ttyUSB0 (tty)
KERNEL[173.188238] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4 (usb)
KERNEL[173.193216] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0 (usb)
KERNEL[173.373352] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0/ttyUSB1 (usb-serial)
KERNEL[173.374518] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0/ttyUSB1/tty/ttyUSB1 (tty)
UDEV  [173.378614] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4 (usb)
UDEV  [173.381459] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0 (usb)
UDEV  [173.384335] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0/ttyUSB1 (usb-serial)
UDEV  [173.406067] add      /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0/ttyUSB1/tty/ttyUSB1 (tty)

Title: Re: persistant rules
Post by: bmarkus on June 18, 2015, 12:46:37 PM

BTW, why do you want to swap the interfaces, why can't accept device names as they are?

Title: Re: persistant rules
Post by: Rich on June 18, 2015, 02:45:25 PM

Hi bellad
Are you sure that the serial number was changed? See what this says:

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udevadm info -a -n /dev/ttyUSB0
udevadm info -a -n /dev/ttyUSB1

Title: Re: persistant rules
Post by: bellad on June 23, 2015, 08:04:01 AM

hello,
i try

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udevadm info -a -n /dev/ttyUSB0 but RPI crash

with

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sudo udevadm info --query=all --name=ttyUSB is good

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tc@box:~$ sudo udevadm info --query=all --name=ttyUSB1
P: /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0/ttyUSB1/tty/ttyUSB1
N: ttyUSB1
S: serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0
S: serial/by-path/platform-bcm2708_usb-usb-0:1.3.4:1.0-port0
E: DEVLINKS=/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001-if00-port0 /dev/serial/by-path/platform-bcm2708_usb-usb-0:1.3.4:1.0-port0
E: DEVNAME=/dev/ttyUSB1
E: DEVPATH=/devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.4/1-1.3.4:1.0/ttyUSB1/tty/ttyUSB1
E: ID_BUS=usb
E: ID_MODEL=CP2102_USB_to_UART_Bridge_Controller
E: ID_MODEL_ENC=CP2102\x20USB\x20to\x20UART\x20Bridge\x20Controller
E: ID_MODEL_ID=ea60
E: ID_PATH=platform-bcm2708_usb-usb-0:1.3.4:1.0
E: ID_PATH_TAG=platform-bcm2708_usb-usb-0_1_3_4_1_0
E: ID_REVISION=0100
E: ID_SERIAL=Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_0001
E: ID_SERIAL_SHORT=0001
E: ID_TYPE=generic
E: ID_USB_DRIVER=cp210x
E: ID_USB_INTERFACES=:ff0000:
E: ID_USB_INTERFACE_NUM=00
E: ID_VENDOR=Silicon_Labs
E: ID_VENDOR_ENC=Silicon\x20Labs
E: ID_VENDOR_ID=10c4
E: MAJOR=188
E: MINOR=1
E: SUBSYSTEM=tty
E: USEC_INITIALIZED=31965230

tc@box:~$ sudo udevadm info --query=all --name=ttyUSB0
P: /devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/ttyUSB0/tty/ttyUSB0
N: ttyUSB0
S: serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_1740-if00-port0
S: serial/by-path/platform-bcm2708_usb-usb-0:1.3.3:1.0-port0
E: DEVLINKS=/dev/serial/by-id/usb-Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_1740-if00-port0 /dev/serial/by-path/platform-bcm2708_usb-usb-0:1.3.3:1.0-port0
E: DEVNAME=/dev/ttyUSB0
E: DEVPATH=/devices/platform/bcm2708_usb/usb1/1-1/1-1.3/1-1.3.3/1-1.3.3:1.0/ttyUSB0/tty/ttyUSB0
E: ID_BUS=usb
E: ID_MODEL=CP2102_USB_to_UART_Bridge_Controller
E: ID_MODEL_ENC=CP2102\x20USB\x20to\x20UART\x20Bridge\x20Controller
E: ID_MODEL_ID=ea60
E: ID_PATH=platform-bcm2708_usb-usb-0:1.3.3:1.0
E: ID_PATH_TAG=platform-bcm2708_usb-usb-0_1_3_3_1_0
E: ID_REVISION=0100
E: ID_SERIAL=Silicon_Labs_CP2102_USB_to_UART_Bridge_Controller_1740
E: ID_SERIAL_SHORT=1740
E: ID_TYPE=generic
E: ID_USB_DRIVER=cp210x
E: ID_USB_INTERFACES=:ff0000:
E: ID_USB_INTERFACE_NUM=00
E: ID_VENDOR=Silicon_Labs
E: ID_VENDOR_ENC=Silicon\x20Labs
E: ID_VENDOR_ID=10c4
E: MAJOR=188
E: MINOR=0
E: SUBSYSTEM=tty
E: USEC_INITIALIZED=31958878


Title: Re: persistant rules
Post by: Rich on June 23, 2015, 10:11:21 AM

Hi bellad
What happens if you change:

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ATTRS{serial}==to:

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ENV{ID_SERIAL_SHORT}==

Title: Re: persistant rules
Post by: bellad on June 23, 2015, 10:13:13 AM

yes I already tried, it's the same