* [PATCH 2.6.34-rc6] mxc: gadget: Fix bitfield for calculating maximum packet size
@ 2010-05-03 19:41 Dinh.Nguyen at freescale.com
2010-05-04 9:48 ` Sergei Shtylyov
0 siblings, 1 reply; 3+ messages in thread
From: Dinh.Nguyen at freescale.com @ 2010-05-03 19:41 UTC (permalink / raw)
To: linux-arm-kernel
From: Dinh Nguyen <Dinh.Nguyen@freescale.com>
The max packet length bit mask used for isochronous endpoints
should be 0x7FF instead of 0x8FF. 0x8FF will actually clear
higher-order bits in the max packet length field.
This patch applies to 2.6.34-rc6.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
---
drivers/usb/gadget/fsl_udc_core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index fa3d142..08a9a62 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -489,7 +489,7 @@ static int fsl_ep_enable(struct usb_ep *_ep,
case USB_ENDPOINT_XFER_ISOC:
/* Calculate transactions needed for high bandwidth iso */
mult = (unsigned char)(1 + ((max >> 11) & 0x03));
- max = max & 0x8ff; /* bit 0~10 */
+ max = max & 0x7ff; /* bit 0~10 */
/* 3 transactions at most */
if (mult > 3)
goto en_done;
--
1.6.0.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH 2.6.34-rc6] mxc: gadget: Fix bitfield for calculating maximum packet size
2010-05-03 19:41 Dinh.Nguyen at freescale.com
@ 2010-05-04 9:48 ` Sergei Shtylyov
0 siblings, 0 replies; 3+ messages in thread
From: Sergei Shtylyov @ 2010-05-04 9:48 UTC (permalink / raw)
To: linux-arm-kernel
Hello.
Dinh.Nguyen at freescale.com wrote:
> From: Dinh Nguyen <Dinh.Nguyen@freescale.com>
>
> The max packet length bit mask used for isochronous endpoints
> should be 0x7FF instead of 0x8FF. 0x8FF will actually clear
> higher-order bits in the max packet length field.
>
> This patch applies to 2.6.34-rc6.
>
> Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
You should send this to the linux-usb mailing list.
WBR, Sergei
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH 2.6.34-rc6] mxc: gadget: Fix bitfield for calculating maximum packet size
@ 2010-05-04 15:03 Dinh.Nguyen at freescale.com
0 siblings, 0 replies; 3+ messages in thread
From: Dinh.Nguyen at freescale.com @ 2010-05-04 15:03 UTC (permalink / raw)
To: linux-arm-kernel
From: Dinh Nguyen <Dinh.Nguyen@freescale.com>
The max packet length bit mask used for isochronous endpoints
should be 0x7FF instead of 0x8FF. 0x8FF will actually clear
higher-order bits in the max packet length field.
This patch applies to 2.6.34-rc6.
Signed-off-by: Dinh Nguyen <Dinh.Nguyen@freescale.com>
---
drivers/usb/gadget/fsl_udc_core.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index fa3d142..08a9a62 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -489,7 +489,7 @@ static int fsl_ep_enable(struct usb_ep *_ep,
case USB_ENDPOINT_XFER_ISOC:
/* Calculate transactions needed for high bandwidth iso */
mult = (unsigned char)(1 + ((max >> 11) & 0x03));
- max = max & 0x8ff; /* bit 0~10 */
+ max = max & 0x7ff; /* bit 0~10 */
/* 3 transactions at most */
if (mult > 3)
goto en_done;
--
1.6.0.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-05-04 15:03 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-05-04 15:03 [PATCH 2.6.34-rc6] mxc: gadget: Fix bitfield for calculating maximum packet size Dinh.Nguyen at freescale.com
-- strict thread matches above, loose matches on Subject: below --
2010-05-03 19:41 Dinh.Nguyen at freescale.com
2010-05-04 9:48 ` Sergei Shtylyov
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).