[gentoo-user] Does USB devices share bandwidth?

2006-06-22 Thread 张韡武
Hello. My old sparc server have a USB extension card, which provides two USB slots at the back of the machine, driving a USB printer on Slot A. This printer runs at heavy load. because it cannot print the documents as fast as we need, I wish to add another printer. In most casese, we need the two

Re: [gentoo-user] Does USB devices share bandwidth?

2006-06-22 Thread Jarry
case A: the new printer uses the bandwidth on slot B, both run as fast as if they were the only USB printer; case B: the new printer share bandwidth with the old one, the result is both printer work 1/2 fast, that is equal to not having bought another printer at all. Which one is true?

Re: [gentoo-user] Does USB devices share bandwidth?

2006-06-22 Thread Caster
On 6/22/06, 张�|武 [EMAIL PROTECTED] wrote: Hello. My old sparc server have a USB extension card, which provides twoUSB slots at the back of the machine, driving a USB printer on Slot A.This printer runs at heavy load. because it cannot print the documents as fast as we need, I wish to add another

Re: [gentoo-user] Does USB devices share bandwidth?

2006-06-22 Thread sternklang gentoo
Hi,If there are only two ports on the card, there is almost certainly a single hub controller on the card, so they would share the available bandwidth. That would be a max of 12Mbits/second for 1.1.On 6/22/06, Caster [EMAIL PROTECTED] wrote: On 6/22/06, 张�|武 [EMAIL PROTECTED] wrote: Hello. My

Re: [gentoo-user] Does USB devices share bandwidth?

2006-06-22 Thread Richard Fish
On 6/22/06, 张�|武 [EMAIL PROTECTED] wrote: The two USB slots provided by the USB card are both OHCI (some USB 1.x stuff, not USB 2.0). So far it seems one single printer uses up all the USB bandwidth (sometimes printer stop there several seconds wait for signal). Are you *sure* this is due to

Re: [gentoo-user] Does USB devices share bandwidth?

2006-06-22 Thread Teresa and Dale
Richard Fish wrote: On 6/22/06, 张�|武 [EMAIL PROTECTED] wrote: The two USB slots provided by the USB card are both OHCI (some USB 1.x stuff, not USB 2.0). So far it seems one single printer uses up all the USB bandwidth (sometimes printer stop there several seconds wait for signal). Are