Felipe Balbi b6dbace92e usb: add helper to extract bits 12:11 of wMaxPacketSize ... commit 541b6fe630 upstream. According to USB Specification 2.0 table 9-4, wMaxPacketSize is a bitfield. Endpoint's maxpacket is laid out in bits 10:0. For high-speed, high-bandwidth isochronous endpoints, bits 12:11 contain a multiplier to tell us how many transactions we want to try per uframe. This means that if we want an isochronous endpoint to issue 3 transfers of 1024 bytes per uframe, wMaxPacketSize should contain the value: 1024 | (2 << 11) or 5120 (0x1400). In order to make Host and Peripheral controller drivers' life easier, we're adding a helper which returns bits 12:11. Note that no care is made WRT to checking endpoint type and gadget's speed. That's left for drivers to handle. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-12-20 10:07:16 +01:00
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asm-generic	generic syscalls: kill cruft from removed pkey syscalls	2016-10-17 09:50:56 -07:00
drm	drm_fourcc: Fix DRM_FORMAT_MOD_LINEAR #define	2017-10-08 10:26:02 +02:00
linux	usb: add helper to extract bits 12:11 of wMaxPacketSize	2017-12-20 10:07:16 +01:00
misc	cxl: Use fixed width predefined types in data structure.	2016-08-09 16:52:01 +10:00
mtd	mtd: kill the nand_ecclayout struct	2016-05-05 23:51:51 +02:00
rdma	IB/cxgb3: fix misspelling in header guard	2017-02-01 08:33:07 +01:00
scsi	scsi: cxlflash: Transition to application close model	2016-08-23 22:23:41 -04:00
sound	Merge remote-tracking branch 'asoc/fix/topology-abi' into asoc-linus	2016-11-04 12:34:05 -06:00
video
xen	xen/evtchn: add IOCTL_EVTCHN_RESTRICT	2016-07-25 10:59:31 +01:00
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