Red Hat Bugzilla – Bug 56324
hisax isdn: fax AT commands fail with sedlbauer card
Last modified: 2007-04-18 12:38:18 EDT
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Description of problem:
The hisax isdn driver is supposed to support the Sedlbauer fax pci isdn card. This card is semi-active and supports send and receive
faxes. With kernel RPM 2.4.2, the original kernel shipped with RH LInux 7.1, it works. With kernel 2.4.9-12 from the latest update, it fails
with the message in /var/log/messages:
isar recmsg IRQSTA timeout
isar waitrecmsg prog failed
The AT emulator /dev/ttyI* will then not accept fax commands (AT FCLASS fails).
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Take a fresh RedHat 7.1 installation with a Sedlbauer speed fax PCI card. isdn4k-utils must be installed.
2. Load driver kernel module: insmod hisax type=28
3. Load firmware: /usr/sbin/hisaxctrl HiSax 9 /usr/lib/isdn/ISAR.BIN
4. Use minicom or cu to connect to /dev/ttyI0
5. Enter at fclass=?
("1" indicating fax class 1 operration)
The problem is confirmed by one of the isdn4linux maintainers at the URL given above. The page also contains a small patch which is
supposed to fix the problem. I haven't tried it myself so far, though
Please apply the patch in the next kernel updates - thanks!
Thanks for this report! The patch looks good so I've added it to the kernel tree
for if/when we're doing a new erratum.
I'll close this as "fixed in rawhide" as the patch is in the tree and it should
appear in rawhide soon...