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Bug#303844: marked as done (resolve "device xxx is grabbed by another driver")

Your message dated Fri, 3 Aug 2007 18:33:40 +0200
with message-id <20070803163339.GA28857@stro.at>
and subject line PCI ID 10b9:5459 illegaly grabbed by kernel drivers
has caused the attached Bug report to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what I am
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Debian bug tracking system administrator
(administrator, Debian Bugs database)

--- Begin Message ---
Package: sl-modem-source
Version: 2.9.9a-1
Severity: wishlist

Some of the ALI chipset modems supported by this driver are detected by
the Linux kernel on boot and identified as modems. Their PCI address is 
then assigned to the default serial driver intended for real modems. 

Up until the 2.6.10 driver, there was a workaround allowing the serial 
driver to be released in such cases; starting with 2.6.10, there is no
such workaround. When the slmodem driver is to be loaded, it finds the 
hardware is already taken and refuses to load:

    slamr: device 10b9:5457 is grabbed by another driver

This behavior requires a simple fix in the 8250_pci.c serial driver in 
the kernel, along the lines below -- the patch is said to be from Sasha 
Khapyorsky <sashak@smlink.com>, the upstream author of the driver, and
was sent to me by Jacques Goldberg on the linmodems.org discussion list.

Tested on my system and solves the problem. 

As this is not a bug in the sl-modem driver, I'm unsure how best to file 
the bug and the proposed patch; please feel free to forward it to the
Debian kernel patcher if that seems appropriate to you; at some point it
should go to the mainline kernel. In the meantime it might help people 
here who run into this problem. The diff is against the latest 2.6.10-6
Debian kernel source.


--- 8250_pci.c  2005-04-09 00:23:31.000000000 -0700
+++ 8250_pci.c-2.6.10.patched   2005-03-13 02:14:13.000000000 -0800
@@ -1605,6 +1605,20 @@
+ * pci devices with appropriate class declared, but known as
+ * non modems or serial
+ */
+static struct pci_device_id __devinitdata non_serial_pci_tbl[] = {
+       {       PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M5451,
+               PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+       {       PCI_VENDOR_ID_AL, 0x5457,
+               PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+       {       PCI_VENDOR_ID_AL, 0x5459,
+               PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+       { 0, }
  * Probe one serial board.  Unfortunately, there is no rhyme nor reason
  * to the arrangement of serial ports on a PCI card.
@@ -1616,6 +1630,9 @@
        struct pci_serial_quirk *quirk;
        int rc, nr_ports, i;
+        if (pci_match_device(non_serial_pci_tbl, dev))
+                return -ENODEV;
        if (ent->driver_data >= ARRAY_SIZE(pci_boards)) {
		printk(KERN_ERR "pci_init_one: invalid driver_data: %ld\n",

-- System Information:
Debian Release: sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.6.10-ac8
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)

Versions of packages sl-modem-daemon depends on:
ii  debconf                     1.4.47       Debian configuration management sy
ii  kernel-image-2.6.10-ac8 [ke 2            Linux kernel binary image for vers
ii  libasound2                  1.0.8-3      ALSA library
ii  libc6                       2.3.2.ds1-20 GNU C Library: Shared libraries an
ii  sl-modem-modules-2.6.10-ac8 2.9.9a-1+2   Smart Link modem modules for Linux
ii  sl-modem-source             2.9.9a-1     SmartLink software modem driver - 

-- debconf information excluded

--- End Message ---
--- Begin Message ---
Package: linux-2.6

no update on subsequent pings.
if your trouble persists on update etch or current testing reholler.


--- End Message ---

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