On Tue, Jun 29, 2010 at 12:25 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Mon, 28 Jun 2010, Subs wrote: > >> Hi All, >> >> In my class driver I am receiving data transfer buffer as number of >> Scatter-Gather lists from SCSI layer to perform data transfers. >> >> Is there any alternate way to get the transfer buffer from SCSI other >> than SG. I wanted to receive the complete data transfer buffer as a >> single pointer. > > As far as I know, there is no alternate way to get the transfer buffer > from the SCSI layer. > > However you can get the effect you want by setting the sg_tablesize > field in your scsi_host_template to 1. > > Just out of curiosity, why are you writing a class driver for the BOT > class? Aren't the two existing drivers in the kernel good enough? > > Alan Stern > > By changing sg_tablesize to 1, there is no change in number of buffers that I am receiving in SG list. > Just out of curiosity, why are you writing a class driver for the BOT > class? Aren't the two existing drivers in the kernel good enough? I am writing my custom class driver, which can do Control and Bulk transfers only. This is nowhere related to Mass Storage BOT transfers. Regards, Subs -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
