From: Heilpern, M. <mar...@au...> - 2005-10-25 14:24:12
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On the Gumstix platform, are there any (specific) DMA channels available for user definition? Also, is there perhaps a standard Linux kernel API for making use of DMA or do I need to perform raw access for it? If I need to program DMA directly through the registers, does anyone know if there are any registers I need to tred lightly on due to other code sharing them? Thanks.... Mark _______________________________________________________ NOTE: The information in this message is intended for the personal and = confidential use of the designated recipient(s) named above. To the extent the = recipient(s) is/are bound by a non-disclosure agreement, or other agreement that contains an = obligation of confidentiality, with AuthenTec, then this message and/or any = attachments shall be considered confidential information and subject to the confidentiality = terms of that agreement. If the reader of this message is not the intended recipient = named above, you are notified that you have received this document in error, and any = review, dissemination, distribution or copying of this message is strictly prohibited. If you = have received this document in error, please delete the original message and notify the = sender immediately. Thank you. AuthenTec, Inc. http://www.authentec.com |
From: Pascal A. B. <pas...@wa...> - 2005-10-25 16:21:40
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Heilpern, Mark writes: > On the Gumstix platform, are there any (specific) DMA channels available > for user definition? You can get a channel with pxa_request_dma() and release it with pxa_free_dma(). It looks like it's safe to program the registers directly in-between. http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2004-January/019124.html -- P. |