Форум Slackware Linux

# Rules for SD Cards
# Transcend
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="Flash Reader*", RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"
# Microsonic Mini Card Reader
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="Card  Reader*", RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"
# Realtek rts 5139
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="xD/SD/*",       RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"

# Rules for SD Cards
# Transcend
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="Flash*Reader*",   RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"
# Microsonic Mini Card Reader
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="Card*Reader*",    RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"
# Realtek rts 5139
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="xD/SD/*",         RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"
# Digma DVR (Novatek Microelectronics Corp.)
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="scsi", ATTRS{model}=="Camera*Storage*", RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"

ACTION=="add", SUBSYSTEM=="block", ENV{ID_BUS}=="usb", KERNEL=="sd*?", ATTR{removable}=="1", ATTR{device/max_sectors}=="*", ATTR{device/max_sectors}="64"

# udevadm monitor --property
...
UDEV  [24109.321789] add      /devices/pci0000:00/0000:00:1d.7/usb1/1-6 (usb)
ACTION=add
BUSNUM=001
DEVNAME=/dev/bus/usb/001/031
DEVNUM=031
DEVPATH=/devices/pci0000:00/0000:00:1d.7/usb1/1-6
DEVTYPE=usb_device
ID_BUS=usb
ID_MODEL=Mass_Storage_Device
ID_MODEL_ENC=Mass\x20Storage\x20Device
ID_MODEL_ID=1336
ID_REVISION=0100
ID_SERIAL=Generic_Mass_Storage_Device_00000000000006
ID_SERIAL_SHORT=00000000000006
ID_USB_INTERFACES=:080650:
ID_VENDOR=Generic
ID_VENDOR_ENC=Generic\x20\x20\x20
ID_VENDOR_ID=048d
...

# lsusb -v -s 001:036

Bus 001 Device 036: ID 048d:1336 Integrated Technology Express, Inc. SD/MMC Cardreader
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x048d Integrated Technology Express, Inc.
  idProduct          0x1336 SD/MMC Cardreader
  bcdDevice            1.00
  iManufacturer           1 Generic   
  iProduct                2 Mass Storage Device
  iSerial                 3 00000000000006
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           32
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass         8 Mass Storage
      bInterfaceSubClass      6 SCSI
      bInterfaceProtocol     80 Bulk-Only
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0200  1x 512 bytes
        bInterval               1
Device Qualifier (for other device speed):
  bLength                10
  bDescriptorType         6
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  bNumConfigurations      1
Device Status:     0x0000
  (Bus Powered)

# ATTRS{bMaxPacketSize0}=="64"
SUBSYSTEM=="block", KERNEL=="sd*", SUBSYSTEMS=="usb", ATTRS{bMaxPacketSize0}=="64", RUN+="/bin/sh -c '/bin/echo 64 > /sys/block/%k/device/max_sectors'"