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| author | Duncan Sands <duncan.sands@math.u-psud.fr> | 2006-04-28 18:44:06 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-05-08 23:43:54 -0700 |
| commit | 67c752b41a4238c1a2d7eebcd061ff8c1127d3e9 (patch) | |
| tree | b2a568a12e965fc76f276c108a0e7027e84eb6a3 /drivers | |
| parent | 839ab1d4ce4dfd7e6c189391a82c584292488b41 (diff) | |
| download | linux-67c752b41a4238c1a2d7eebcd061ff8c1127d3e9.tar.bz2 | |
[PATCH] USBATM: change the default speedtouch iso altsetting
The maximum possible bandwidth for a speedtouch modem is about 7Mbaud.
You can only get this by using isochronous urbs (enable_isoc=1) and
altsetting 3. With the current default altsetting of 2, the modem
maxes out at about 4Mbaud. So change the default altsetting to 3
when using isochronous urbs. It would be nice to base the altsetting
on the detected line speed, but that's hard given the current design.
Signed-off-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/atm/speedtch.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c index 7860c8a5800d..956b7a1e8af9 100644 --- a/drivers/usb/atm/speedtch.c +++ b/drivers/usb/atm/speedtch.c @@ -69,7 +69,7 @@ static const char speedtch_driver_name[] = "speedtch"; #define RESUBMIT_DELAY 1000 /* milliseconds */ #define DEFAULT_BULK_ALTSETTING 1 -#define DEFAULT_ISOC_ALTSETTING 2 +#define DEFAULT_ISOC_ALTSETTING 3 #define DEFAULT_DL_512_FIRST 0 #define DEFAULT_ENABLE_ISOC 0 #define DEFAULT_SW_BUFFERING 0 |