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Subject: [media] tm6000: Add fast USB access quirk Author: Thierry Reding <[email protected]> Date: Thu Sep 1 02:43:03 2011 -0300 Some devices support fast access to registers using the USB interface while others require a certain delay after each operation. This commit adds a quirk that can be enabled by devices that don't need the delay. Signed-off-by: Thierry Reding <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/staging/tm6000/tm6000-core.c | 3 ++- drivers/staging/tm6000/tm6000.h | 4 ++++ 2 files changed, 6 insertions(+), 1 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=42845708363fc92a190f5c47e6fe750e3919f867 diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index b3c4e05..6d0803c 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -619,7 +619,8 @@ int tm6000_reset(struct tm6000_core *dev) return err; } - msleep(5); + if ((dev->quirks & TM6000_QUIRK_NO_USB_DELAY) == 0) + msleep(5); /* * Not all devices have int_in defined diff --git a/drivers/staging/tm6000/tm6000.h b/drivers/staging/tm6000/tm6000.h index dac2063..5bdce84 100644 --- a/drivers/staging/tm6000/tm6000.h +++ b/drivers/staging/tm6000/tm6000.h @@ -169,6 +169,8 @@ struct tm6000_endpoint { unsigned maxsize; }; +#define TM6000_QUIRK_NO_USB_DELAY (1 << 0) + struct tm6000_core { /* generic device properties */ char name[30]; /* name (including minor) of the device */ @@ -260,6 +262,8 @@ struct tm6000_core { struct usb_isoc_ctl isoc_ctl; spinlock_t slock; + + unsigned long quirks; }; enum tm6000_ops_type { _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
