[sane-devel] sanei_usb problems when using libusb_1.0 with hp3670

[stef]

	Hello,

	I have a scanner with only one usb configuration. Using 
usb_set_configuration on it will result on a failed usb call. So to avoid 
problem I moved all the usb_set_configuration and the result testing within 
the case where dev->descriptor.bNumConfigurations > 1 . Then if I move the 
libusb_set_configuration in the if, I still have problems, 
libusb_control_transfer fails (retrun code -99 : other error) line 2508 in 
sanei_usb.c.

	So if I use libusb1.0, the HP3670 fails, when other devices need this 
version. Any idea ?

Bus 005 Device 004: ID 03f0:1405 Hewlett-Packard ScanJet 3670
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol       255 Vendor Specific Protocol
  bMaxPacketSize0         8
  idVendor           0x03f0 Hewlett-Packard
  idProduct          0x1405 ScanJet 3670
  bcdDevice            1.00
  iManufacturer           1 
  iProduct                2 
  iSerial                12 
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           39
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xc0
      Self Powered
    MaxPower               48mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           3
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
      iInterface              0 
      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
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0001  1x 1 bytes
        bInterval               8
Device Status:     0x0690
  (Bus Powered)


sanei_usb log:
[genesys] sane_open: start (devicename = `libusb:005:004')
[genesys] sane_open: found `hewlett-packard-scanjet-3670c' in devlist
[sanei_usb] sanei_usb_open: trying to open device `libusb:005:004'
[sanei_usb] sanei_usb_open: configuration nr: 0
[sanei_usb] sanei_usb_open:     interface nr: 0
[sanei_usb] sanei_usb_open:   alt_setting nr: 0
[sanei_usb] sanei_usb_open: endpoint nr: 0
[sanei_usb] sanei_usb_open: direction: 128
[sanei_usb] sanei_usb_open: address: 1 transfertype: 2
[sanei_usb] sanei_usb_open: found bulk-in endpoint (address 0x01)
[sanei_usb] sanei_usb_open: we already have a bulk-in endpoint (address: 
0x81), ignoring the new one
[sanei_usb] sanei_usb_open: endpoint nr: 1
[sanei_usb] sanei_usb_open: direction: 0
[sanei_usb] sanei_usb_open: address: 2 transfertype: 2
[sanei_usb] sanei_usb_open: found bulk-out endpoint (address 0x02)
[sanei_usb] sanei_usb_open: we already have a bulk-out endpoint (address: 
0x02), ignoring the new one
[sanei_usb] sanei_usb_open: endpoint nr: 2
[sanei_usb] sanei_usb_open: direction: 128
[sanei_usb] sanei_usb_open: address: 3 transfertype: 3
[sanei_usb] sanei_usb_open: found interrupt-in endpoint (address 0x03)
[sanei_usb] sanei_usb_open: we already have a int-in endpoint (address: 0x83), 
ignoring the new one
[sanei_usb] sanei_usb_open: opened usb device `libusb:005:004' (*dn=0)
[genesys] init_options: start
[genesys] init_options: exit
[sanei_debug] Setting debug level of genesys_low to 255.
[sanei_debug] Setting debug level of genesys_gl646 to 255.
[genesys_gl646] gl646_init: start
[sanei_usb] sanei_usb_control_msg: rtype = 0x40, req = 12, value = 131, index 
= 0, len = 1
[sanei_usb] 000 41                                              A               
libusb:warning [libusb_control_transfer] unrecognised status code 1
[sanei_usb] sanei_usb_control_msg: libusb complained: Other error
[genesys_low] sanei_genesys_read_register (0x41, 0x00): failed while setting 
register: Invalid argument
[genesys] sane_exit: start
[genesys] sane_exit: exit



Regards,
	Stef