Next-in-Thread Next Message

Question No CIS on CardBus card MC221 

Forum: PCMCIA driver development
Date: 2000, Jul 28
From: Sebastian Kloska kloska

 Hi !

 I'm currently playing around with a mc221 modem card
 from lucent. It's a winmodem card so it may be never runs
 under linux but may be if I find the time :-) I'll
 write a driver.

 Problem is the pcmcia driver doesn't even recognize it
 after poking around in the code i found out the following.

 1) The VendorID isn't read correctly. When doing a 

    pci_readw(bus, 0, PCI_VENDOR_ID, &vend)

    once in cb_alloc vend == 0xff

    If you insert a second read it's correct.
    (semi present configuration space ?)

 2) The cis is somehow missing
    the cis pointer is set to 0x00000040 which should tell
    me that there is a cis at offset 0x40 within the
    configuration space. But the whole 256 bytes of     
    configuration space looks like this.

  00: c1 11 40 04 00 00 90 02 01 00 80 07 00 00 00 00 
  10: 00 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00   
  20: 00 00 00 00 00 00 00 00 40 00 00 00 00 ff 40 04 
  30: 00 00 00 00 f8 00 00 00 00 00 00 00 00 01 fc 0e 
  40: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  50: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  60: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  70: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff  
  90: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  a0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  b0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  c0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  d0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  e0: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
  f0: ff ff ff ff ff ff ff ff 01 00 22 e4 00 00 00 00 

   Starting after the first 64 bytes everything is 
   0xff except the last 8 bytes which doesn't look
   like a valid cis for me.

   Any recommendations ?

    regards 

  sebastian    

Next-in-Thread Next Message

Add Message to: "No CIS on CardBus card MC221"

Members Subscribe Admin Mode Show Frames Help for HyperNews at pcmcia-cs.sourceforge.net 1.10