Re: [PATCH v4] USB: ehci-pci: USB host controller support for Intel Quark X1000

2014-07-01 Thread Jingoo Han
On Tuesday, July 01, 2014 11:12 PM, Alan Stern wrote: > On Tue, 1 Jul 2014, Chen, Alvin wrote: > > > From: Bryan O'Donoghue > > > > The EHCI packet buffer in/out threshold is programmable for Intel Quark > > X1000 > > USB host controller, and the default value is 0x20 dwords. The in/out > > th

Re: [PATCH v4] USB: ehci-pci: USB host controller support for Intel Quark X1000

2014-07-01 Thread Alan Stern
On Tue, 1 Jul 2014, Chen, Alvin wrote: > From: Bryan O'Donoghue > > The EHCI packet buffer in/out threshold is programmable for Intel Quark X1000 > USB host controller, and the default value is 0x20 dwords. The in/out > threshold > can be programmed to 0x80 dwords (512 Bytes) to maximize the pe

[PATCH v4] USB: ehci-pci: USB host controller support for Intel Quark X1000

2014-07-01 Thread Chen, Alvin
From: Bryan O'Donoghue The EHCI packet buffer in/out threshold is programmable for Intel Quark X1000 USB host controller, and the default value is 0x20 dwords. The in/out threshold can be programmed to 0x80 dwords (512 Bytes) to maximize the perfomrance, but only when isochronous/interrupt transa