Ondrej Zary e62aa046e1 paride: pf driver fixes ...

The pf driver for parallel port floppy drives seems to be broken.  At least
with Imation SuperDisk with EPAT chip, the driver calls pi_connect() and
pi_disconnect after each transferred sector.  At least with EPAT, this
operation is very expensive - causes drive recalibration.  Thus, transferring
even a single byte (dd if=/dev/pf0 of=/dev/null bs=1 count=1) takes 20
seconds, making the driver useless.

The pf_next_buf() function seems to be broken as it returns 1 always (except
when pf_run is non-zero), causing the loop in do_pf_read_drq (and
do_pf_write_drq) to be executed only once.

The following patch fixes this problem.  It also fixes swapped descriptions in
pf_lock() function and removes DBMSG macro, which seems useless.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-11-14 18:45:39 -08:00

..

aten.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

bpck6.c

[PATCH] paride: remove parport #ifdef's

2006-12-07 08:39:45 -08:00

bpck.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

comm.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

dstr.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

epat.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

epia.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

fit2.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

fit3.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

friq.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

frpw.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

kbic.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

Kconfig

[PATCH] Remove unused kernel config option PARIDE_PARPORT

2007-02-11 11:18:06 -08:00

ktti.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

Makefile

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mkd

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

on20.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

on26.c

[PATCH] paride_register(): shuffle return values

2006-12-07 08:39:33 -08:00

paride.c

[PATCH] paride: remove parport #ifdef's

2006-12-07 08:39:45 -08:00

paride.h

[PATCH] paride: rename pi_register() and pi_unregister()

2006-12-07 08:39:33 -08:00

pcd.c

[BLOCK] Get rid of request_queue_t typedef

2007-07-24 09:28:11 +02:00

pd.c

[BLOCK] Get rid of request_queue_t typedef

2007-07-24 09:28:11 +02:00

pf.c

paride: pf driver fixes

2007-11-14 18:45:39 -08:00

pg.c

[PATCH] mark struct file_operations const 3

2007-02-12 09:48:45 -08:00

ppc6lnx.c

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pseudo.h

WorkStruct: make allyesconfig

2006-11-22 14:57:56 +00:00

pt.c

paride: fix 'and' typo in drivers/block/paride/pt.c

2007-11-05 15:12:32 -08:00

Transition-notes

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00