Date: Sat, 18 Jan 1997 22:43:49 +1100 (EST) From: Joel Sutton <suttonj@interconnect.com.au> To: FreeBSD Hackers <hackers@freebsd.org> Subject: ft driver patch for Colorado Jumbo 350 floppy tape drive Message-ID: <Pine.BSF.3.95.970118164907.552B-100000@solsbury-hill.home>
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Greetings,
Here is a small change for who-ever is looking after the ft driver. If no
one is then at least it will sit in the archives or something. :->
I have a 2.1.5-RELEASE system and the patch (below) allows me to use
425ft tapes in my Colorado Jumbo 350 floppy tape drive. So far I
haven't had any problems with this change and I have no idea whether or
not this will break things for users of other types of drive. All the
geometry numbers were taken from the QIC-80 standard which I downloaded
from the QIC web site.
Both the ft and lft programs work well with this change also. Is there any
chance that this could be considered for -current? (or something..)
Thanks, Joel...
PS: If anyone is interested it takes about 1 hour to back up 150MB
(my /home) and several hours to format a tape. If you hear about
1 MB/sec for this drive then they're talking about the dedicated
controller board. Regular cleaning of the heads also helps.
*** /sys/i386/isa/ft.c-orig Wed Dec 11 18:46:49 1996
--- sys/i386/isa/ft.c Thu Dec 12 14:40:08 1996
***************
*** 152,158 ****
{ 1, 3, "QIC-40", "295/900", 0, 0, 0, 0, 0 }, /* ??? */
{ 1, 4, "QIC-40", "1100/550", 20, 365, 11680, 128, 32512 },
{ 1, 5, "QIC-40", "1100/900", 0, 0, 0, 0, 0 }, /* ??? */
! { 2, 1, "QIC-80", "205/550", 28, 100, 3200, 128, 19200 },
{ 2, 2, "QIC-80", "307.5/550", 28, 150, 4800, 128, 19200 },
{ 2, 3, "QIC-80", "295/900", 0, 0, 0, 0, 0 }, /* ??? */
{ 2, 4, "QIC-80", "1100/550", 28, 537, 17184, 128, 32512 },
--- 152,158 ----
{ 1, 3, "QIC-40", "295/900", 0, 0, 0, 0, 0 }, /* ??? */
{ 1, 4, "QIC-40", "1100/550", 20, 365, 11680, 128, 32512 },
{ 1, 5, "QIC-40", "1100/900", 0, 0, 0, 0, 0 }, /* ??? */
! { 2, 1, "QIC-80", "425/550", 28, 207, 6624, 128, 19200 },
{ 2, 2, "QIC-80", "307.5/550", 28, 150, 4800, 128, 19200 },
{ 2, 3, "QIC-80", "295/900", 0, 0, 0, 0, 0 }, /* ??? */
{ 2, 4, "QIC-80", "1100/550", 28, 537, 17184, 128, 32512 },
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